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Value of x and y satisfying the equation...

Value of `x` and `y` satisfying the equation `sin^(7)y=|x^(3)-x^(2)-9x+9|+|x^(3)-4x-x^(2)+4|+sec^(2)2y+cos^(4)y` are

A

`x=1,y=npi`

B

`x=1,y=2npi+(pi)/(2)`

C

`x=1,y=2n pi `

D

None of these

Text Solution

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The correct Answer is:
B
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