Question

Find the value of tan²10-cot²80

Answer 1

value of tan²10-cot²80
we know tan A=cot(90-A)
hence cot 10 = tan80\
hence value is zero

Answer 2

Dear friend,,, Here's your answer......♥️♥️

${tan}^{2} 10 - {cot}^{2} 80 \\ = {cot}^{2} (90 - 10) - {cot}^{2} 80 \\ = {cot}^{2} 80 - {cot}^{2} 80 \\ = 0$

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