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जर tan θ + cot θ = 2, तर tan2θ + cot2θ = ? - Mathematics 2 - Geometry [गणित २ - भूमिती]

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Question

जर tan θ + cot θ = 2, तर tan2θ + cot2θ = ? 

Sum

Solution

tan θ + cot θ = 2   ....[दिलेले]

∴ (tan θ + cot θ)2 = 4    .....[दोन्ही बाजूंचा वर्ग करून]

∴ tan2θ + 2tan θ.cot θ + cot2θ = 4   ......[∵ (a + b)2 = a2 + 2ab + b2]

∴ tan2θ + 2(1) + cot2θ = 4    ......[∵ tan θ ⋅ cot θ = 1]

∴ tan2θ + cot2θ = 4 – 2

∴ tan2θ + cot2θ = 2

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Chapter 6: त्रिकोणमिती - Q २ ब)

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SCERT Maharashtra Geometry (Mathematics 2) [Marathi] 10 Standard SSC
Chapter 6 त्रिकोणमिती
Q २ ब) | Q ५.
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