যদি 3 tanθ =  sinθ হয়, 0°  এর মান কত ?

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SSC CGL Tier 2 Quant Previous Paper 1 (Held On: 29 Jan 2022)
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Answer (Detailed Solution Below)

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PYST 1: SSC CGL - General Awareness (Held On : 20 April 2022 Shift 2)
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Detailed Solution

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প্রদত্ত:

3 tanθ =  sinθ

অনুসৃত সূত্র:

tanθ = 

cos 30° = , cosec 60° = 

Cot 60° = , sin 30° = , tan 60° = √3

গণনা: 

আমাদের আছে 3 tanθ =  sinθ

⇒ 3  = 2√3 sinθ 

⇒  = 2√3

⇒ cosθ =  = cos 30° 

⇒ θ = 30° 

এখন,

 এর মান

⇒ 

⇒  = 

⇒ 

নির্ণেয় মান হল 

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