6 - 4 sin θ का न्‍यूनतम मान कितना है, जहाँ 0 ≤ θ ≤ \(\frac{\pi}{2}\)?

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CDS Elementary Mathematics 16 April 2023 Official Paper
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  1. 1
  2. 2
  3. 4
  4. 6

Answer (Detailed Solution Below)

Option 2 : 2
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प्रयुक्त अवधारणा:

-1 ≤ sin θ ≤ 1 जब θ ∈ [0, π/2]

गणना:

f(θ) = 6- 4 sin θ

इसे न्यूनतम करने के लिए, (4 sinθ) अधिकतम होना चाहिए।

चूँकि, θ ∈ [0 ,π/2]

sin θ का अधिकतम मान = 1

f(θ)min = 6 - 4 × 1 = 2

∴ 6- 4 sin θ का न्यूनतम मान 2 है।

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