Math, asked by meenal992, 6 months ago

tan 48° tan 23° tan 42° tan 67°=1

Answers

Answered by Bhartingghs

2

Answer:

1

Step-by-step explanation:

tan 48° tan 23° tan 42° tan 67° = tan (90° - 42°) tan (90° - 67°) tan 42° tan 67° = cot 42° cot 67° tan 42° tan 67° = (cot 42° tan 42°) (cot 67° tan 67°) = 1×1 = 1

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