Iff(x)=2x^2+3x-5,x=3,deltax=0.02, then d...

If`f(x)=2x^2+3x-5,x=3,deltax=0.02`, then `delta`f=

A

0.3008

B

0.3

C

0.308

D

0.8

Text Solution

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The correct Answer is:

A

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1) If f(x) =2x^2+3x-5 ,x=3 , delta x=0*1 then df=A 2) If f(x) =x^2+4x,x=2,deltax=0*1 then df=B. 3) If f(x) =x^2+3x,x=3,deltax=0*1 then df=C. The ascending order of A,B, C is

Knowledge Check

If f(x)=2x^(2)+3x-5,x=3,deltax=0.1 then deltaf=A (2) If f(x)=x^(2)+4x,x=2,deltax=0.1 then deltaf=B (3) If f(x)=x^(2)+3x,x=3,deltax=0.1 then deltaf=C The ascending order of A, B C is

A

A, B, C

B

B, C, A

C

C, A, B

D

A, C, B

If f(x) =x^2 +3x,x=10, deltax=0.01 then I: deltaf =02301 II : df = 023 III : relative error in x is 1

A

only I, III are true

B

only II,III are true

C

only I,II are true

D

I,II,III are true

If f(x)-1//x,x=1,deltax=0.02, then deltaf=

A

0.02

B

-0.02

C

0.0196

D

-0.0196

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If f(x)=logx,x=2,deltax=0.02 then deltaf-df=

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If f(x)=(1)/(2)x^(2)+3x,x=2,deltax=0.5,deltaf=

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DIPTI PUBLICATION ( AP EAMET)-APPLICATIONS OF DIFFERENTIATION-EXERCISE 1A (APPROXIMATIONS AND ERRORS)

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