Value of tan5° tan40° tan45° tan50° tan85°
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Step-by-step explanation:
tan5°tan85°tan40°tan50°tan45°
=tan5°tan(90-5)tan40°tan(90-40)°tan45°
=tan5°cot5°tan40°cot40°tan45°
=1
Answered by
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Step-by-step explanation:
tan5° tan40° tan45° tan50° tan85°
=tan5°× cot5°×tan40°×cot40°×tan45°
(°•° tanø=cot(90-ø))
=1
(°•° tanø.cotø=1,tan45°=1)
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