Solution 4.3:2b - Revision history

Tek at 13:14, 9 October 2008

Tek — Thu, 09 Oct 2008 13:14:51 GMT

←Older revision		Revision as of 13:14, 9 October 2008
Line 1:		Line 1:
-	If we write the angle	+	If we write the angle <math>\frac{7\pi }{5}</math> as
-	<math>\frac{7\pi }{5}</math>	+
-	as	+

		+	{{Displayed math\|\|<math>\frac{7\pi}{5} = \frac{5\pi+2\pi}{5} = \pi + \frac{2\pi }{5}</math>}}

-	<math>~~\frac{~~7\pi ~~}{5}=\frac{5\pi +2\pi }{5}=\pi +\frac{2\pi }{~~5}</math>	+	we see that <math>7\pi/5</math> is an angle in the third quadrant.

		+	[[Image:4_3_2_b.gif\|\|center]]

-	~~we see that~~	+	The angle between <math>0</math> and <math>\pi</math> which has the same ''x''-coordinate as the angle <math>7\pi/5</math>, and hence the same cosine value, is the reflection of the angle <math>7\pi/5</math> in the ''x''-axis, i.e.
-	<math>\~~frac{~~7\pi }{5}</math>	+
-	is an angle in the ~~third quadrant~~.	+

-	~~<center> [[Image:4_3_2_b.gif]] </center>~~	+	{{Displayed math\|\|<math>v = \pi -\frac{2\pi}{5} = \frac{3\pi}{5}\,\textrm{.}</math>}}
-		+
-		+
-	~~the line~~	+
-	~~<math>x=\cos \frac~~{~~7\pi }~~{~~5}</~~math>	+
-		+
-	~~The angle between~~	+
-	~~<math>0</math>~~	+
-	~~and~~	+
-	~~<math>\pi </math>~~	+
-	~~which has the same x-coordinate as the angle~~	+
-	~~<math>{7\pi }/{5}\;</math>, and hence the same cosine value, is the reflection of the angle~~	+
-	~~<math>{7\pi }/{5}\;</math>~~	+
-	~~in the~~	+
-	~~<math>x</math>~~	+
-	~~-axis, i.e.~~	+
-	<math>v=\pi -\frac{2\pi }{5}=\frac{3\pi }{5}</math>.	+

Ian — Mon, 29 Sep 2008 10:34:33 GMT

←Older revision		Revision as of 10:34, 29 September 2008
Line 1:		Line 1:
-	{{~~NAVCONTENT_START~~}}	+	If we write the angle
		+	<math>\frac{7\pi }{5}</math>
		+	as
		+
		+
		+	<math>\frac{7\pi }{5}=\frac{5\pi +2\pi }{5}=\pi +\frac{2\pi }{5}</math>
		+
		+
		+	we see that
		+	<math>\frac{7\pi }{5}</math>
		+	is an angle in the third quadrant.
		+
	<center> [[Image:4_3_2_b.gif]] </center>		<center> [[Image:4_3_2_b.gif]] </center>

-	<~~center~~> ~~[[Image:4_3_2b.gif]]~~ </~~center~~>	+
-	{{~~NAVCONTENT_STOP~~}}	+	the line
		+	<math>x=\cos \frac{7\pi }{5}</math>
		+
		+	The angle between
		+	<math>0</math>
		+	and
		+	<math>\pi </math>
		+	which has the same x-coordinate as the angle
		+	<math>{7\pi }/{5}\;</math>, and hence the same cosine value, is the reflection of the angle
		+	<math>{7\pi }/{5}\;</math>
		+	in the
		+	<math>x</math>
		+	-axis, i.e.
		+	<math>v=\pi -\frac{2\pi }{5}=\frac{3\pi }{5}</math>.

Tekbot — Tue, 09 Sep 2008 09:51:43 GMT

←Older revision

Revision as of 09:51, 9 September 2008

Tekbot — Thu, 21 Aug 2008 07:12:59 GMT

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

Martin — Fri, 15 Aug 2008 15:43:03 GMT

Oskar — Thu, 03 Apr 2008 09:42:20 GMT

Ny sida: {{NAVCONTENT_START}} <center> Bild:4_3_2b.gif </center> {{NAVCONTENT_STOP}}

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<center> [[Bild:4_3_2b.gif]] </center>
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