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जर tanθ + θ1tanθ = 2 तर दाखवा की θθtan2θ+1tan2θ = 2 - Mathematics 2 - Geometry [गणित २ - भूमिती]

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Question

जर tanθ + `1/tanθ` = 2 तर दाखवा की `tan^2θ + 1/tan^2θ` = 2

Sum

Solution

tanθ + `1/tanθ` = 2 .......…[दिलेले]

∴ `(tanθ + 1/tanθ)^2 = 4` ......[दोन्ही बाजूंचा वर्ग करून]

∴ `tan^2θ + 2 (tanθ) (1/tanθ) + 1/tan^2θ = 4`  ......[∵ (a + b)2 = a2 + 2ab + b2]

∴ `tan^2θ + 2 + 1/tan^2θ = 4`

∴ `tan^2θ + 1/tan^2θ = 4 - 2`

∴ `tan^2θ + 1/tan^2θ = 2` 

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त्रिकोणमितीय नित्यसमानता
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Chapter 6: त्रिकोणमिती - सरावसंच 6.1 [Page 132]

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Balbharati Geometry (Mathematics 2) [Marathi] 10 Standard SSC Maharashtra State Board
Chapter 6 त्रिकोणमिती
सरावसंच 6.1 | Q 6. (9) | Page 132
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