Final Answer
Step-by-step Solution
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Divide $\pi $ by $2$
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$\cot\left(\frac{\pi}{2}\right)^2=-1$
Learn how to solve equations problems step by step online. Solve the equation cot(pi/2)^2=-1. Divide \pi by 2. Calculating the cotangent of \frac{\pi}{2} degrees. Calculate the power 0^2. 0 is not equal to -1.