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If f(x)=(x-x(0)) phi (x) and phi(x) is ...

If `f(x)=(x-x_(0)) phi (x) and phi(x) ` is continuous at x=`x_(0)`. Then `f'(x_(0))` is equal to

A

`phi'(x_(0))`

B

`phi(x_(0))`

C

`x_(0)phi(x_(0))`

D

None of these

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OBJECTIVE RD SHARMA ENGLISH-CONTINUITY AND DIFFERENTIABILITY-Exercise
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  7. Let f (x + y) = f(x) f(y) for all x, y, in R, suppose that f(3) = 3...

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  11. Let f(x+y)=f(x) f(y) and f(x)=1+(sin 2x)g(x) where g(x) is continuous....

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  12. Let g(x) be the inverse of an invertible function f(x) which is differ...

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  13. Let g(x) be the inverse of f(x) and f'(x)=1/(1+x^(3)).Find g'(x) in te...

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  14. Let f(x)={{:(,x^(n)sin\ (1)/(x),x ne 0),(,0,x=0):} Then f(x) is contin...

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  15. If for a continuous function f,f(0)=f(1)=0,f'(1)=2 and y(x)=f(e^(x))e^...

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  17. Let f(0,pi) to R be defined as f(x)={{:(,(1-sinx)/((pi-2x)^(2)).(In si...

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  18. If f(x)=(e^(2x) - (1+4x)^(1//2))/(ln(1-x^2)) for x != 0, then f has

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  19. Let f(x)={{:(,(ex^(2)-(2)/(pi)sin^(-1)sqrt(1-x))/(In(1+sqrtx)),x in (0...

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  20. Let f(x)={{:(,x^(3),x lt 1),(,ax^(2)+bx+c,:x ge 1):}. If f''(1) exists...

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