Mathematics MCQS for class 12 with Answers

If ?'(c) = 0, then f has relative maxima at x=c if

?” (c) > 0

?”(c) < 0

?”(c) = 0

?” (c)

y=Cosec hx then dy/dx=

Cot hx Sin hx

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Cot hx Cosec hx

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The notation f'(x) is used for derivative by:

Lagrange

Caunchy

None of these

Newton

If c?Dfand f'(c)=0, then the point (c,f(c)) on the graph of f is named as a :

Point of intersection

Critical point

Stationary point

None of these

If y=cf(x) then dy/dx =

f(x)

None of these

f'(x)

cf'(x)

If f(x)=1/x

^{2 }then f'(-1)=2

2-Jan

1

-1

lim ?(x) – ?(a) /x-a equals:

0

?

Limit does not exist

?’

If f(x) is differentiable in the neighborhood of c, where of c, where ? ‘(c) = then ? has relative minima at x = c if

*f”*(c) < 0

None of these

*f”*(c) = 0

*f”*(c) > 0

If f(x)=c

^{3}then f'(x)=0

3/c

3c

^{2}c

^{2}If y=Cos x then dy/dx=

1/Sin x

Cos x

#NAME?

#NAME?

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