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If cos^(-1)((7)/(|x|))+cos^(-1)((4sqrt(1...

If `cos^(-1)((7)/(|x|))+cos^(-1)((4sqrt(15))/(|x|))=(pi)/(2)`, then:

A

`x= pm 16`

B

`x = pm 17`

C

`tan^(-1)(sqrt((|x|)/(|x|-12)))=(pi)/(3)`

D

`tan^(-1)((10|x|-1)/((|x|-4)^(2)))=(pi)/(4)`

Text Solution

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The correct Answer is:
B, D
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