Express cot85°+tan75° in terms of trigonometric ratios of angle brtween0°and45°
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Cot(90 - 5) + tan (90- 15)
Tan5 + cot 15
It's the answer
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Heya!!
cot 85° + tan 75°
= cot(90 - 5) + tan (90- 15)
Since, cot(90 - theta ) = tan theta
tan (90 - theta) = cot theta
= tan 5° + cot 15°
Hence, Above expression is expressed in angle between 0° and 45°.
Hope it helps uh :)
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