Math, asked by Rukmani631, 1 year ago

Show that:-
Tan48°tan23°tan42°tan67°=

Answers

Answered by deepvrm

4

Answer:

1

Step-by-step explanation:

just convert tan to cot and simplify

Attachments:

Answered by kunal565776

4

Answer:

tan 48°.tan 23°.tan 42°. tan 67°

=tan(90-42).tan 42° .tan (90-67). tan 67°

=(cot 42°.tan 42°).(cot 67° .tan 67°)

=1×1

=1

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