Math, asked by officialpetkarmaaz, 11 months ago

PLEASE ANSWER MY QUESTION ACCURATE AND FAST PLEASE NEEDED NOW.
QUESTION :- ⤵️
Evaluate without using trignometrical tables :- tan 20° . tan 40° tan 50° tan 70°

Answers

Answered by Deadpool2110

1

tan20°tan40°tan50°tan70°

cot(90-20)°cot(90-50)°tan50°tan70°

cot20°tan20°cot50°tan50° = 1

The answer is 1.

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