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Let u(x) and v(x) be differentiable func...

Let u(x) and v(x) be differentiable functions such that
`(u(x))/(v(x))=7.if(u'(x))/(v'(x))=pand((u(x))/(v(x))) '=q," then "(p+q)/(p-q)` has the value equal to

A

1

B

0

C

7

D

-7

Text Solution

Verified by Experts

`u(x)=7v(x) or u' (x)=7 v'(x) or p=7" (given)"`
`"Again "(u(x))/(v(x))=7or ((u(x))/(v(x)))=0 or q =0`
`"Now, "(p+q)/(p-q)=(7+0)/(7-0)=1`
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