Grade 11Differential Calculus
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1 Answer
Aditya Gupta
this ques is really easy. option A is correct.
reason: if suppose f ”(x) is less than zero, that means graph of f(x) would be concave down. since f(0)=1 and f’(0)= – 1, f(x) would have to cross the x axis. but since f(X) is given to be greater than zero, therefore f “(x) cannot be less than zero.
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