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slove the equation.tan ⁻¹(x+1/x-1)+tan⁻¹(x-1/x)=tan⁻¹(-7)

slove the equation.tan ⁻¹(x+1/x-1)+tan⁻¹(x-1/x)=tan⁻¹(-7)

Grade:11

1 Answers

Subodh Wasnik
41 Points
3 years ago
Apply tan^-1(x) + tan^-1(y) = tan^-1(x+y/1-xy)And then solve the quadratic equation you obtain.x=+-2

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