I. Certain functions are explicitly defined. Perform the indicated operations. 1. For the function f(x) = sin x. Show with the aid of the elementary formula. 1 sin? A = 1 (1 - cos 2A) That f (x + y) -f (x) = cos x sin y – 2 sin x sin? %3D

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A: Solution )4) limx→1ln(7 - x2/1 + x ) = ln [( 7 - 12)/( 1 + 1 )] = ln (6/2) = ln 3  = 1.098 5) limx→-...

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A: Please refer to the image below

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A: Please refer to the image below 

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