यदि {(3 sin θ – cos θ) / (cos θ + sin θ)} = 1 है, तो cot θ का मान क्या है?

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SSC CGL 2023 Tier-I Official Paper (Held On: 14 Jul 2023 Shift 1)
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Answer (Detailed Solution Below)

Option 3 : 1
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PYST 1:SSC CGL 2023 - Quantitative Aptitude(Held On:14 Jul 2023 Shift 1)
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दिया गया है:

{(3Sinθ - Cosθ)/(Cosθ + Synθ)} = 1

गणना:

हमारे पास एक त्रिकोणमितीय समीकरण है

{(3Sinθ - Cosθ)/(Cosθ + Synθ)} = 1

अंश और हर को Sinθ से विभाजित करने पर, हमें प्राप्त होता है

⇒ [{(3sinθ – cosθ)/Sinθ}/{(cosθ + sinθ)/sinθ}] = 1

⇒ {(3 – cotθ)/(cotθ + 1)} = 1

⇒ 3 – cotθ = 1 + cotθ

⇒ 2cotθ = 2

cotθ = 1

मान 1 है।

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