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यदि `15 cottheta=8,` तब `sin theta` व `sec theta` का मान ज्ञात कीजिए.

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यहाँ `15cot theta=8impliescot theta=8/15`
`impliescot theta=("आधार")/(" लम्ब")=(AB)/(BC)=8/15`
`impliesAB=8, BC=15`
`DeltaABC` में पाइथागोरस प्रमेय से,
`AC^(2)=AB^(2)+BC^(2)=(8)^(2)+(15)^(2)=64+225=289`
`impliesAC=17`
अतः `sin theta=(BC)/(AC)=(15)/(17)` व `sec theta=(AC)/(AB)=17/8`
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