Math, asked by kalp43, 9 months ago

cot 10° cot 20°cot 60° cot 70° cot 80º =1/√3

Answers

Answered by ayanahmed2003786

2

Answer:

LHS=cot 10° cot 20°cot 60° cot 70° cot 80º

=tan80° tan 70° cot 80° cot 70° cot 60°

=tan80°cot 80° tan 70° cot 70° cot 60°

=tan 80°*1/tan80°*tan 70°*1/tan 70°*cot 60°

=1*1*1/√3. (cot 60 is 1/√3)

=1/√3=RHS

Thank you

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