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"Let "f(x)=phi(x)+Psi(x), phi'(x) and Ps...

`"Let "f(x)=phi(x)+Psi(x), phi'(x) and Psi'(x)` are finite and definite. Then,

A

f(x) is continuous at x = a

B

f(x) is differentiable at x = a

C

f'(x) is continuous at x = a

D

f'(x) is differentiable at x = a

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The correct Answer is:
A, B
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