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Sec2θ + cosec2θ = sec2θ × cosec2θ - Mathematics 2 - Geometry [गणित २ - भूमिती]

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Question

sec2θ + cosec2θ = sec2θ × cosec2θ  

Sum

Solution

डावी बाजू = sec2θ + cosec2θ

= `1/cos^2θ + 1/sin^2θ`

= `(sin^2θ + cos^2θ)/(cos^2θ . sin^2θ)`

= `1/(cos^2θ.sin^2θ)` .....[∵ sin2θ + cos2θ = 1]

= `1/cos^2θ xx 1/sin^2θ`

=`sec^2θ xx "cosec"^2θ`

= उजवी बाजू

∴ sec2θ + cosec2θ = sec2θ × cosec2θ   

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त्रिकोणमितीय नित्यसमानता
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Chapter 6: त्रिकोणमिती - संकीर्ण प्रश्नसंग्रह 6 [Page 138]

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Balbharati Geometry (Mathematics 2) [Marathi] 10 Standard SSC Maharashtra State Board
Chapter 6 त्रिकोणमिती
संकीर्ण प्रश्नसंग्रह 6 | Q 5. (3) | Page 138
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