Math, asked by salaka, 1 year ago

cot10° cot 15° cot 60° cot 75° cot 80°=​


wardahd1234: answer will be one
harshitagarwal624: no...it will root 3

Answers

Answered by dhana232323
7

Answer:

Step-by-step explanation:

cot10° cot 15° cot 60° cot 75° cot 80°

=cot(90-80)° cot(90-75)° cot60° cot75° cot 80°

=tan80° tan75° (1/√3) cot75° cot 80°

=tan80° tan75° (1/√3) 1/tan75° 1/tan80°

=1/√3

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