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	<title>Revise Maths</title>
	
	<link>http://revisemaths.org.uk</link>
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		<title>Trigonometry: Finding angles in right-angled triangles</title>
		<link>http://revisemaths.org.uk/geometry/trigonometry-finding-angles/</link>
		<comments>http://revisemaths.org.uk/geometry/trigonometry-finding-angles/#comments</comments>
		<pubDate>Tue, 19 Jun 2012 13:09:29 +0000</pubDate>
		<dc:creator>Mr D (admin)</dc:creator>
				<category><![CDATA[Geometry]]></category>
		<category><![CDATA[angles]]></category>
		<category><![CDATA[formulae]]></category>
		<category><![CDATA[gradeb]]></category>
		<category><![CDATA[level8]]></category>
		<category><![CDATA[triangles]]></category>
		<category><![CDATA[trigonometry]]></category>

		<guid isPermaLink="false">http://revisemaths.org.uk/?p=624</guid>
		<description><![CDATA[Level: 8 &#124; GCSE Grade: B How to find the size of angles in right-angled triangles using the Sine, Cosine and Tangent ratios. Watch on Youtube Related topics: Introduction to Trigonometric (Trig) ratios Trigonometry for finding side lengths in right-angled triangles Pythagoras&#8217; theorem The Sine Rule (Trigonometry in non right-angled triangles) The Cosine Rule for [...]]]></description>
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		<slash:comments>2</slash:comments>
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		<title>Trigonometry: Finding side lengths in right-angled triangles</title>
		<link>http://revisemaths.org.uk/geometry/trigonometry-finding-side-lengths/</link>
		<comments>http://revisemaths.org.uk/geometry/trigonometry-finding-side-lengths/#comments</comments>
		<pubDate>Wed, 06 Jun 2012 13:27:44 +0000</pubDate>
		<dc:creator>Mr D (admin)</dc:creator>
				<category><![CDATA[Geometry]]></category>
		<category><![CDATA[formulae]]></category>
		<category><![CDATA[gradeb]]></category>
		<category><![CDATA[level8]]></category>
		<category><![CDATA[triangles]]></category>
		<category><![CDATA[trigonometry]]></category>

		<guid isPermaLink="false">http://revisemaths.org.uk/?p=610</guid>
		<description><![CDATA[Level: 8 &#124; GCSE Grade: B Three worked examples showing how to find side lengths in right-angled triangles using the Sine, Cosine and Tangent ratios. Watch on Youtube Related topics: Introduction to Trigonometric (Trig) ratios Trigonometry for finding angles in right-angled triangles Pythagoras&#8217; theorem The Sine Rule (Trigonometry in non right-angled triangles) The Cosine Rule [...]]]></description>
		<wfw:commentRss>http://revisemaths.org.uk/geometry/trigonometry-finding-side-lengths/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Introduction to Trigonometric Ratios</title>
		<link>http://revisemaths.org.uk/geometry/intro-to-trig-ratios/</link>
		<comments>http://revisemaths.org.uk/geometry/intro-to-trig-ratios/#comments</comments>
		<pubDate>Tue, 05 Jun 2012 22:37:18 +0000</pubDate>
		<dc:creator>Mr D (admin)</dc:creator>
				<category><![CDATA[Geometry]]></category>
		<category><![CDATA[gradeb]]></category>
		<category><![CDATA[level8]]></category>
		<category><![CDATA[ratio]]></category>
		<category><![CDATA[triangles]]></category>
		<category><![CDATA[trigonometry]]></category>

		<guid isPermaLink="false">http://revisemaths.org.uk/?p=602</guid>
		<description><![CDATA[Level: 8 &#124; GCSE Grade: B An introduction to Trigonometric (Trig) Ratios in right-angled triangles. How the side lengths are connected to the angles and how to remember the ratios using SOH CAH TOA. Watch on Youtube Related topics: Trigonometry for finding side lengths in right-angled triangles Trigonometry for finding angles in right-angled triangles Pythagoras&#8217; [...]]]></description>
		<wfw:commentRss>http://revisemaths.org.uk/geometry/intro-to-trig-ratios/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Adding and subtracting negative numbers</title>
		<link>http://revisemaths.org.uk/number/adding-and-subtracting-negative-numbers/</link>
		<comments>http://revisemaths.org.uk/number/adding-and-subtracting-negative-numbers/#comments</comments>
		<pubDate>Fri, 04 Mar 2011 00:29:14 +0000</pubDate>
		<dc:creator>Mr D (admin)</dc:creator>
				<category><![CDATA[Number]]></category>
		<category><![CDATA[addition]]></category>
		<category><![CDATA[directed numbers]]></category>
		<category><![CDATA[gradee]]></category>
		<category><![CDATA[level5]]></category>
		<category><![CDATA[negative numbers]]></category>
		<category><![CDATA[subtraction]]></category>

		<guid isPermaLink="false">http://revisemaths.org.uk/?p=515</guid>
		<description><![CDATA[Level: 5 &#124; GCSE Grade: E Adding and subtracting positive and negative (directed) numbers using a number line. Download video (right click and save) Included in the video: Adding and subtracting positive numbers: -5 + 8 &#38; -1 &#8211; 5 Adding and subtracting negative numbers: 5 + -7, 1 &#8211; -4, -3 + -2, -5 &#8211; -9 Related [...]]]></description>
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		<slash:comments>2</slash:comments>
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		<item>
		<title>A few updates and tweaks</title>
		<link>http://revisemaths.org.uk/blog/a-few-updates-and-tweaks/</link>
		<comments>http://revisemaths.org.uk/blog/a-few-updates-and-tweaks/#comments</comments>
		<pubDate>Sun, 27 Feb 2011 14:07:58 +0000</pubDate>
		<dc:creator>Mr D (admin)</dc:creator>
				<category><![CDATA[Blog]]></category>

		<guid isPermaLink="false">http://revisemaths.org.uk/?p=512</guid>
		<description><![CDATA[Over the past few days there have been a number of small tweaks to the site and some new bits as well. New videos for: Factorising quadratic expressions Solving quadratic equations by factorising Solving quadratic equations using the quadratic formula Other changes: List of topics for AQA Higher GCSE Unit 1 (this still needs a [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Solving quadratic equations by factorising</title>
		<link>http://revisemaths.org.uk/algebra/solving-quadratic-equations-by-factorising/</link>
		<comments>http://revisemaths.org.uk/algebra/solving-quadratic-equations-by-factorising/#comments</comments>
		<pubDate>Fri, 25 Feb 2011 00:58:08 +0000</pubDate>
		<dc:creator>Mr D (admin)</dc:creator>
				<category><![CDATA[Algebra]]></category>
		<category><![CDATA[brackets]]></category>
		<category><![CDATA[equations]]></category>
		<category><![CDATA[expressions]]></category>
		<category><![CDATA[factorising]]></category>
		<category><![CDATA[factors]]></category>
		<category><![CDATA[gradeb]]></category>
		<category><![CDATA[quadratics]]></category>

		<guid isPermaLink="false">http://revisemaths.org.uk/?p=493</guid>
		<description><![CDATA[GCSE Grade: B Solving quadratic equations by factorising. Including rearranging equations into the correct form. Included in the video: Solve x2 + 6x + 5 Solve x2 &#8211; 6x + 9 Solve 12x2 &#8211; 28x = -15 Related topics: Factorising quadratic expressions Solving quadratic equations using the quadratic formula Solving quadratic equations by completing the square Solving equations [...]]]></description>
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		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Factorising quadratic expressions</title>
		<link>http://revisemaths.org.uk/algebra/factorising-quadratic-expressions/</link>
		<comments>http://revisemaths.org.uk/algebra/factorising-quadratic-expressions/#comments</comments>
		<pubDate>Thu, 24 Feb 2011 17:06:06 +0000</pubDate>
		<dc:creator>Mr D (admin)</dc:creator>
				<category><![CDATA[Algebra]]></category>
		<category><![CDATA[brackets]]></category>
		<category><![CDATA[expressions]]></category>
		<category><![CDATA[factorising]]></category>
		<category><![CDATA[factors]]></category>
		<category><![CDATA[gradea]]></category>
		<category><![CDATA[gradeb]]></category>
		<category><![CDATA[quadratics]]></category>

		<guid isPermaLink="false">http://revisemaths.org.uk/?p=485</guid>
		<description><![CDATA[GCSE Grade: B / A Factorising quadratic expressions in the form ax2 + bx + c into two brackets. This is the opposite of expanding double brackets. Download as mp4 Download for iPod Included in the video: Factorise x2 + 5x + 6 Factorise x2 &#8211; 8x &#8211; 9 Factorise t2 &#8211; 13t + 36 [...]]]></description>
		<wfw:commentRss>http://revisemaths.org.uk/algebra/factorising-quadratic-expressions/feed/</wfw:commentRss>
		<slash:comments>6</slash:comments>
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		<title>Solving quadratic equations using the formula</title>
		<link>http://revisemaths.org.uk/algebra/quadratic-formula/</link>
		<comments>http://revisemaths.org.uk/algebra/quadratic-formula/#comments</comments>
		<pubDate>Thu, 24 Feb 2011 00:43:03 +0000</pubDate>
		<dc:creator>Mr D (admin)</dc:creator>
				<category><![CDATA[Algebra]]></category>
		<category><![CDATA[equations]]></category>
		<category><![CDATA[gradea]]></category>
		<category><![CDATA[quadratics]]></category>
		<category><![CDATA[rearranging]]></category>
		<category><![CDATA[substitution]]></category>
		<category><![CDATA[surds]]></category>

		<guid isPermaLink="false">http://revisemaths.org.uk/?p=462</guid>
		<description><![CDATA[GCSE Grade: A Solving quadratic equations using the quadratic formula. Leaving answers in surd form or as decimals. Including rearranging equations into the correct form. The following examples are included in the video: Solve x2 &#8211; 4x + 2 = 0, giving answers to 2 decimal places Solve x2 + 8x + 5 = 0, [...]]]></description>
		<wfw:commentRss>http://revisemaths.org.uk/algebra/quadratic-formula/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
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