মান নির্ণয় কর : \(\cfrac{cosec 79°}{\sec 11°}\)


\(\cfrac{cosec 79°}{\sec 11°}\)
\(=\cfrac{cosec(90°-11°)}{\sec 11°}\)
\(=\cfrac{sec 11°}{\sec 11°} [∵cosec (90°-θ)=sec⁡θ] \)
\(=1\)

∴নির্ণেয় মান \(\cfrac{cosec 79°}{\sec 11°}=1\)

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