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Cot2θ - tan2θ = cosec2θ - sec2θ - Mathematics 2 - Geometry [गणित २ - भूमिती]

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Question

cot2θ - tan2θ = cosec2θ - sec2θ 

Sum

Solution

डावी बाजू = cot2θ - tan2θ

= `("cosec"^2θ - 1) - (sec^2θ - 1)` .......`[(∵ tan^2θ = sec^2θ - 1), (cot^2θ = "cosec"^2θ - 1)]`

= cosec2θ - 1 - sec2θ + 1 

= cosec2θ - sec2θ

= उजवी बाजू

∴ cot2θ - tan2θ = cosec2θ - sec2θ 

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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. (4) | Page 138
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