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यदि cos theta =3/5 हो, तो cot theta +co...

यदि `cos theta =3/5` हो, तो `cot theta +cosec theta` का मान ज्ञात करो।

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दिया है : `cos theta =3/5`
`therefore sin theta =sqrt(1- cos ^(2)theta)`
`impliessin theta =sqrt(1-((3)/(5))^(2))=sqrt(1-(9)/(25))=4/5`
अब, `cot theta =(cos theta )/(sin theta )impliescot theta =(3//5)/(4//5) =3/4`
तथा, `cosec theta =(1)/(sin theta)implies cosec theta = 5/4`
`therefore cot theta + cosec theta =3/4+5/4 =8/4=2`
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