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Solve for x and y , 1-2x-x^(2)=tan^(2)(...

Solve for x and y `, 1-2x-x^(2)=tan^(2)(x+y)+cot^(2)(x+y)`.

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The correct Answer is:
`x=-1 and y= npi pm (pi)/4 +1, n in I `
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ARIHANT MATHS-TRIGONOMETRIC EQUATIONS AND INEQUATIONS-Exercise (Subjective Type Questions)
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