cos" xdx :0. 6. If n is a positive odd integer, prove that

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A: We know :  sec2θ-tan2θ=1.

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Q: 4. Which equatlen will allew us to selve for x? 40 A sin 40 b. sin 40 E. cos 40 d. cos 40 e. tan 40…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

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A: