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Let cos(2sin^(-1)x)=1/9xgt0 holds true f...

Let `cos(2sin^(-1)x)=1/9xgt0` holds true for `x=m/n`, where m and n are co-prime further `alpha` and `beta` are root of quadratic eqation `mx^2-nx-m+n=0,(alpha,beta)` then point `(alpha, beta)` lies on the line

A

`5x-8y=9`

B

`5x+y=9`

C

`8x+5y=9`

D

`8x-5y=3`

Text Solution

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The correct Answer is:
C
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