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यदि `cot theta=(15)/(8),` तब `sin theta` तथा `cos theta` का मान ज्ञात कीजिए।

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दिया है- `cot theta=(15)/(8)=(" आधार")/(" लम्ब")`
आधार = 15, लम्ब = 8
पाइथागोरस प्रमेय के अनुसार ,
`AC^(2)=AB^(2)+BC^(2)=15^(2)+8^(2)`
`=225+64=289`
`rArr" "AC=17=` कर्ण
`therefore" "sin theta =("लम्ब")/(" कर्ण")=(8)/(17)`
तथा `" "cos theta=("आधार")/(" कर्ण")=(15)/(17)`
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