Hello Shivani
cot 10 cot 30 cot 80
= cot 10 cot 30 cot (90 - 10)
= cot 10 cot 30 tan 10
= cot 10 tan 10 cot 30
= cot 10 x 1/cot 10 x cot 30
= cot 30
= √3
Written on May 16, 2018, 11:44 a.m.
-
Answer of this question
Find the value of cot 10 cot 30 cot 80??
Comment