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प्रश्न
Choose the correct alternative:
1 + tan2 θ = ?
पर्याय
Sin2 θ
Sec2 θ
Cosec2 θ
Cot2 θ
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उत्तर
sec2θ
Explanation:
1 + tan2θ = sec2θ
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संबंधित प्रश्न
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Activity:
L.H.S = `square`
= `square/sintheta + sintheta/costheta`
= `(cos^2theta + sin^2theta)/square`
= `1/(sintheta*costheta)` ......`[cos^2theta + sin^2theta = square]`
= `1/sintheta xx 1/square`
= `square`
= R.H.S
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