Question 617349
Please help me answer this question: For all valuesof "theta", the expression 1-cos^2("theta") simplifies to: 
F. cot 2("theta")
G. tan 2("theta")
H. cot^2("theta")
J. tan^2("theta") 
K. sin^2("theta")
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Ans: 1-cos^2(theta) = sin^2(theta)
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Cheers,
Stan H.
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