Solution 4.4:1b - Revision history

Tek at 13:07, 10 October 2008

Tek — Fri, 10 Oct 2008 13:07:37 GMT

←Older revision		Revision as of 13:07, 10 October 2008
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-	The easiest angle to find is	+	The easiest angle to find is <math>v = \pi/3</math> in the first quadrant. When we draw the unit circle, we see that the angle which makes the same angle with the positive ''x''-axis as <math>v=\pi/3</math>, but is under the ''x''-axis, also has a cosine value of 1/2 (same ''x''-coordinate).
-	<math>v={\pi }/{3~~}\;~~</math>	+
-	in the first quadrant. When we draw the unit circle, we see that the angle which makes the same angle with the positive	+
-	~~<math>~~x~~</math>~~	+
-	-axis as	+
-	<math>v={\pi }/{3~~}\;~~</math>, but is under the	+
-	~~<math>~~x~~</math>~~	+
-	-axis, also has a cosine value of	+
-	~~<math>{~~1}/{2~~}\;</math>~~	+
-	(same	+
-	~~<math>~~x~~</math>~~	+
-	-coordinate).	+
-		+
-		+

	[[Image:4_4_1_b.gif\|center]]		[[Image:4_4_1_b.gif\|center]]

-	There are thus two angles,	+	There are thus two angles, <math>v=\pi/3</math> and <math>v=2\pi - \pi/3 = 5\pi/3</math> which have their cosine value equal to 1/2.
-	<math>v={\pi }/{3~~}\;~~</math>	+
-	and	+
-	<math>v=2\pi -{\pi }/{3~~}\;~~={5\pi }/{3~~}\;~~</math>	+
-	which have their cosine value equal to	+
-	~~<math>\frac{~~1}{2~~}</math>~~.	+

Ian — Tue, 30 Sep 2008 12:31:48 GMT

←Older revision		Revision as of 12:31, 30 September 2008
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-	{{~~NAVCONTENT_START~~}}	+	The easiest angle to find is
-	<~~center~~> ~~[[Image:4_4_1b~~.~~gif]]~~ </~~center~~>	+	<math>v={\pi }/{3}\;</math>
-	{{~~NAVCONTENT_STOP~~}}	+	in the first quadrant. When we draw the unit circle, we see that the angle which makes the same angle with the positive
		+	<math>x</math>
		+	-axis as
		+	<math>v={\pi }/{3}\;</math>, but is under the
		+	<math>x</math>
		+	-axis, also has a cosine value of
		+	<math>{1}/{2}\;</math>
		+	(same
		+	<math>x</math>
		+	-coordinate).
		+


	[[Image:4_4_1_b.gif\|center]]		[[Image:4_4_1_b.gif\|center]]
		+
		+	There are thus two angles,
		+	<math>v={\pi }/{3}\;</math>
		+	and
		+	<math>v=2\pi -{\pi }/{3}\;={5\pi }/{3}\;</math>
		+	which have their cosine value equal to
		+	<math>\frac{1}{2}</math>.

Tekbot — Tue, 09 Sep 2008 10:00:03 GMT

←Older revision

Revision as of 10:00, 9 September 2008

Tekbot — Thu, 21 Aug 2008 07:17:09 GMT

Robot: Automated text replacement (-[[Bild: +[[Image:)

Madde — Tue, 19 Aug 2008 10:22:57 GMT

Oskar — Thu, 03 Apr 2008 12:19:42 GMT

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