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Question
यदि sin θ = `1/sqrt11` है, तो cot θ का मान है:
Options
`sqrt11/sqrt10`
`sqrt10/sqrt11`
`sqrt10`
`sqrt11`
MCQ
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Solution
`bb(sqrt10)`
स्पष्टीकरण:
दिया है:
sin θ = `1/sqrt11`
हम जानते हैं:
sin2 θ + cos2 θ = 1
`cos^2 theta = 1 - 1/11 = 10/11`
`cos theta = sqrt10/sqrt11`
अब,
`cot theta = (cos theta)/(sin theta) = (sqrt10/sqrt11)/(1/sqrt11)`
= `sqrt10`
shaalaa.com
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