Question

(3) 44.14 CM
54. The value of (tan 5º tan 10° tan 15...tan 85°) is
(1) 1
(2) 3
(3) 0
4. 1/√3​

Answer 1

Tan 85= cot (90-5) = cot 5

tan 5* cot 5=1

this will happen for all paris except 45

So answer is tan 45= 1

So,the final answer is 1