1.

Let f(x) be a function such that f'(x)=log1/3 (log3(sin x +a)]. If f(x) is decreasing for all real values of x, then .

Answer»

Let f(x) be a function such that f'(x)=log1/3 (log3(sin x +a)]. If f(x) is decreasing for all real values of x, then .



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