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Home / Questions / ?Verify the following identity: cos2 ? - sin2 ? 1 + 2 sin ? cos ? = 1 - tan ? 1 + tan ? ....

?Verify the following identity: cos2 ? - sin2 ? 1 + 2 sin ? cos ? = 1 - tan ? 1 + tan ? ....

Verify the following identity: cos2 ? - sin2 ? 1 + 2 sin ? cos ? = 1 - tan ? 1 + tan ? .

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MTH 112 Name: Winter 2018 EC Assignment 4 (Up to 2 points, DUE on Tuesday, March 20) Please show as much work as you can to receive full credit. You may turn this sheet in or work on a separate sheet of paper. (Relevant Section: 7.2) 2 2 cos sin  1tan Problem. Verify the following identity: = . 1+2sincos 1+tan 2 2 2 2 (Hint: Recall that a b = (a+b)(ab) and a +2ab+b = (a+b)(a+b). Also, by the Pythagorean 2 2 Identity, 1 = sin +cos .)

 

Apr 16 2020 View more View Less

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