Question

if tan 20=cot (0+18°), where 20 and (0+18°) are acute angles, find the values of '0'
Answer fast and correct​ .

Answer 1

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tan theta = cot (90- theta)

so tan 20 = cot (90-20) = cot (70) = cot (O +18)

70 = O +18

O = 52 degree

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