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December 18, 2014

December 18, 2014

Posted by **jenny** on Monday, March 5, 2012 at 5:45pm.

1) sec x = -2

2) 2 sin^2 x = 1

3) cos^2 x - 2cos x + 1 = 0

- trig -
**john**, Friday, March 9, 2012 at 7:41pma). secx=-2

2pi/3 and 4pi/3

b). sinx=(2^(1/2)/2

its that value at pi/4, and 3pi/4

c). cosx=+ or - 1, so if they want multiple answers its 0, 2pi, and pi

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