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If sin(x + y) = log(x + y), then dy/dx is equal to (A) 2 (B) −2

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in Limit, continuity and differentiability by (41.5k points)

If sin(x + y) = log(x + y), then dy/dx is equal to 

(A) 2 

(B) −2 

(C) 1 

(D) −1

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Answer is (D) −1

It is an implicit function, so

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