\(\cfrac{\tan 27°}{\cot 63°}\)


\(\cfrac{\tan 27°}{\cot 63°}\)
\(=\cfrac{\tan (90°-63°}{\cot 63°}\)
\(=\cfrac{\cot 63°}{\cot 63°} [∵tan⁡(90°-θ)=cot⁡θ ]\)
\(=1\)

∴নির্ণেয় মান \(\cfrac{\tan 27°}{\cot 63°}=1\)

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