Mathematics MCQS for class 12 with Answers

If y = e

^{10x}then y_{5}= ?e

^{10x}100000e

^{10x}None of these

100e

^{10x}The Newton df(x) is used for derivative by:

Caunchy

Lagrange

Newton

Leibniz

Derivative of y = (x + 1)(?x + 1) is:

None of these

dy/dx = (?x+1) (1)

dy/dx =(x+1)(1/2x)

dy/dx = (x +1) 1/2?x +(?x +1)

If f(x)=2x

^{2}+1 then f'(-1)=4

-4

2

-2

If y=a

^{f(x)}then dy/dx =f'(x)a

^{f(x)}lnaNone of these

f'(x)a

^{f(x)}f'(x)a

^{f(x)}/ lnay=in(f(x)) then dy/dx=

f'(x)/f(x)

f(x)

f'(x)/ lna

1/ f(x)

If y = Sinx then.

none of these

y

^{2}= yY

_{2}=y_{1}y

_{2}= yIf y=Cosec x then dy/dx=

Tan x Secx

#NAME?

-Cosec

*x*Cot*x*Cotx

If y=Cos x then dy/dx=

#NAME?

Cos x

1/Sin x

#NAME?

If f(x) = 1/x

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

1/2

1

2

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