Question

Evaluate :

tan 48* × tan 23* × tan 42* × tan 67*
(Class 10)

Answer 1

Answer:

Step-by-step explanation:

Hey mate here is your answer!

✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡✡

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tan 48° tan 23° tan 42° tan 67°=1 ,

=tan(99°-42°) tan(90°-67°) tan42° tan 67° ,

=cot42° cot67° tan42° tan67° ,

=[cot42° tan42°] [cot67° tan67°] ,

=1×1 ,

=1.✔✔✔✔✔

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