x*(cot(x/ two)^ two + one)*cot(x/ two)/ two - cot(x/ two)^ two - one = zero
x multiply by ( cotangent of (x divide by 2) squared plus 1) multiply by cotangent of (x divide by 2) divide by 2 minus cotangent of (x divide by 2) squared minus 1 equally 0
x multiply by ( cotangent of (x divide by two) to the power of two plus one) multiply by cotangent of (x divide by two) divide by two minus cotangent of (x divide by two) to the power of two minus one equally zero
x*(cot(x/2)2 + 1)*cot(x/2)/2 - cot(x/2)2 - 1 = 0
x*cotx/22 + 1*cotx/2/2 - cotx/22 - 1 = 0
x*(cot(x/2)² + 1)*cot(x/2)/2 - cot(x/2)² - 1 = 0
x*(cot(x/2) to the power of 2 + 1)*cot(x/2)/2 - cot(x/2) to the power of 2 - 1 = 0
x(cot(x/2)^2 + 1)cot(x/2)/2 - cot(x/2)^2 - 1 = 0
x(cot(x/2)2 + 1)cot(x/2)/2 - cot(x/2)2 - 1 = 0
xcotx/22 + 1cotx/2/2 - cotx/22 - 1 = 0
xcotx/2^2 + 1cotx/2/2 - cotx/2^2 - 1 = 0
x*(cot(x divide by 2)^2 + 1)*cot(x divide by 2) divide by 2 - cot(x divide by 2)^2 - 1 = 0