Question

The value of tan 1 tan 2 tan 3 …… tan 89 is ???
a) 0
b) 1
c) not defined
d) none of these

Answer 1

Answer:

the value of not drfined

..

Answer 2

Answer:

b

Step-by-step explanation:

tan1 tan2 tan3.....tan89

=tan(90-1)tan(90-2)tan(90-3)......tan87 tan88 tan89

=cot89 cot88 cot87 ........tan87 tan88 tan89=1