Math, asked by sriliptarath10thgeni, 7 months ago

Express the following as the trigonometric ratio of an acute angle.
cot (-1380)

Answers

Answered by chandraprachi1975

0

Answer:

cot (-3888°) = - Cot(3888°) = -Cot(3600 + 288)° = -Cot 288° = -Cot(180 + 108)° = -Cot108° = -Cot(90 + 18°) = -(-Tan18°) = Tan18°

Step-by-step explanation:

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