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Solve the Equation for Exact Solutions cot⁡−1x+cot⁡−1(1+x)=π4\cot ^ { - 1 } x + \cot ^ { - 1 } ( 1 + x ) = \frac { \pi } { 4 }

Question 91

Multiple Choice

Solve the equation for exact solutions.
- cot⁡−1x+cot⁡−1(1+x) =π4\cot ^ { - 1 } x + \cot ^ { - 1 } ( 1 + x ) = \frac { \pi } { 4 }


A) {−5+32}\{ - 5 + 3 \sqrt { 2 } \}
B) {−34,34}\left\{ - \frac { 3 } { 4 } , \frac { 3 } { 4 } \right\}
C) {12}\left\{ \frac { 1 } { 2 } \right\}
D) {2}\{ 2 \}

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