Math, asked by princelynn5, 9 months ago

tan 45.tan25.tan75.tan65.tan15
find the value of this question

Answers

Answered by shwetashukla794

0

Answer:

1

Step-by-step explanation:

tan45 =1

tan25 = cot (90-25)= cot 65

tan 75= cot (90-75)= cot 15

= 1*cot 65*cot15*tan65* tan 15

=1. * 1. *1. *tan65* tan 15. (cot A= 1/tanA)

tan65 *tan15.

= 1

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