if 6sin^(-1)(x^2 -6x + 8.5)=pi then...

if `6sin^(-1)(x^2 -6x + 8.5)=pi` then

A

`x=1,2`

B

`x=2, 3`

C

`x=3, 4`

D

`x =4,2`

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The correct Answer is:

D

`sin^(-1)(x^(2)-6x+8.5) =(pi)/(6) rArr x^(2)-6x +8.5=0.5`

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