Math, asked by malagurung, 1 year ago

tan15°tan25°tan45°tan65°tan75°=?

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Answered by SakshaM725

8

cot (90-15)°cot (90-25)°tan45°tan65°tan75°
cot75°cot65°×1×tan65°tan75°
1/tan75×1/tan65×1×tan65×tan75
1×1×1×1×1 = 1

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