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If f (x) =(x-1)/(x+1), then the value of...

If `f (x) =(x-1)/(x+1),` then the value of `f (2x)` in terms of `f(x)` is-

A

`(f (x) +1)/(f (x) +3)`

B

`(3f(x) -1)/(f(x) +3)`

C

`(3f(x) +1)/(f(x) +3)`

D

`(f(x) -1)/(f(x) -3)`

Text Solution

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The correct Answer is:
C
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CHHAYA PUBLICATION-MCQ's-QUESTION PAPER 9
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  2. if tan x =b/a, then (sqrt((a+b)/(a-b))+sqrt((a-b)/(a+b))) is equal to-

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  10. The sm of numjbers lying between 107 and 253 and divisible by 5 is-

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  18. The valud of [15^(2)+16^(2)+17^(2)+…+ 30^(2)] is-

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