Q.

There is a physical quantity A=P3Q2 there occurs an error  'x' in P and an error 'y' in Q. Then the maximum possible error in finding A would be :

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a

2x- 3y

b

3x-2y

c

3x+2y

d

2x+ 3y

answer is C.

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Detailed Solution

A=P3Q2 So ∆AA=3∆PP+2∆QQ=3x+2y
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