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• Identical expressions

• (-cot(x)^ two - one)/(cot(x)^ two + one) = zero
• ( minus cotangent of (x) squared minus 1) divide by ( cotangent of (x) squared plus 1) equally 0
• ( minus cotangent of (x) to the power of two minus one) divide by ( cotangent of (x) to the power of two plus one) equally zero
• (-cot(x)2 - 1)/(cot(x)2 + 1) = 0
• -cotx2 - 1/cotx2 + 1 = 0
• (-cot(x)² - 1)/(cot(x)² + 1) = 0
• (-cot(x) to the power of 2 - 1)/(cot(x) to the power of 2 + 1) = 0
• -cotx^2 - 1/cotx^2 + 1 = 0
• (-cot(x)^2 - 1) divide by (cot(x)^2 + 1) = 0

• Similar expressions

• (-cot(x)^2 + 1)/(cot(x)^2 + 1) = 0
• (-cot(x)^2 - 1)/(cot(x)^2 - 1) = 0
• (cot(x)^2 - 1)/(cot(x)^2 + 1) = 0