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For the equation 1-2x-x^(2)=tan^(2)(x+y)...

For the equation `1-2x-x^(2)=tan^(2)(x+y)+cot^(2)(x+y)`

A

exactly one value of x exists

B

exactly two values of x exists

C

`y=-1+npi+pi/4, n in Z`

D

`y=1+npi+pi//4, n in Z`

Text Solution

Verified by Experts

The correct Answer is:
A, D
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