Question

show that tan 48, tan 23, tan 42 , tan 67 =1​

Answer 1

Answer:

show that tan 48, tan 23, tan 42 , tan 67 =1

Step-by-step explanation:

We

Answer 2

Answer:

LHS:-

tan(90-42)×tan 23×tan 42×tan(90-23)

=cot 42×tan 23×tan 42×cot 23

=1/tan 42×tan 23×tan 42×1/tan 23

=1×1×1×1

=1

Hence,L.H.S.=R.H.S.

And that's all your answer