Math, asked by puneet3765, 11 months ago

tan6.tan42.tan66.tan78 = 1

Answers

Answered by Anonymous

1

Answer:tan(90°-78°).tan(90°-66).tan66°.tan78=1

cot78°.cot66°.tan66°.tan78°=1

cot78°.tan78°.cot66°.tan66°=1

1×1=1

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