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प्रश्न
1 + cot2θ = ?
विकल्प
tan2θ
sec2θ
cosec2θ
cos2θ
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उत्तर
cosec2θ
Explanation:
`cot^2θ = (cos^2θ)/(sin^2θ)`
So, `1 + cot^2θ = (sin^2θ + cos^2θ)/(sin^2θ)`
= `1/(sin^2θ)`
= cosec2θ
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