যদি {(3 sin θ - cos θ) / (cos θ + sin θ)} = 1, তাহলে cot θ এর মান হল:

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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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SSC CGL Tier 1 2025 Full Test - 01
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প্রদত্ত:

{(3Sinθ - Cosθ)/(Cosθ + Sinθ)} = 1

গণনা:

আমাদের একটি ত্রিকোণমিতিক সমীকরণ আছে

{(3Sinθ - Cosθ)/(Cosθ + Sinθ)} = 1

লব এবং হরকে sin θ দ্বারা ভাগ করলে আমরা পাই

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

⇒ {(3 - cotθ)/(cotθ + 1)} = 1

⇒ 3 - cotθ = 1 + cotθ

⇒ 2cotθ = 2

cotθ = 1

মান 1।

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