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6 Prove the following 1 cosx sinx cosx 1 a sinx cosx sinx cos x 1 cos x b sin x 2csc x 1 c

6 Prove the following 1 cosx sinx cosx 1 a sinx cosx sinx cos x 1 cos x b sin x 2csc x 1 c cos x cotx cot x cos x 1 sinx secx tanx d 1 sinx e sec x tan x tan x sec x

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