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OpenStudy (anonymous):
for questions 1-5 decide whether the equation is a trigonometry identical. explain your response. 1. cos^2 x(1+tan^2 x)=1 2. sec x tan x(1-sin^2 x)=sin x 3. csc x(2sin x -sqrt 2)=0 4. cos^2(2x)-sin^2(2x)=0 5. sin^2 theta csc^2 theta=sin^2theta+cos^2 theta
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