tan A = \(\frac{2}{3}\) என்றால், பின்வருவனவற்றின் மதிப்பு என்ன? 

(5 sin2A - 2 cos2A) ÷ (15 sin2A + 3 cos2A)

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SSC CGL 2022 Tier-I Official Paper (Held On : 05 Dec 2022 Shift 3)
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  1. \(\frac{21}{47}\)
  2. \(\frac{2}{87}\)
  3. \(\frac{2}{5}\)
  4. \(\frac{3}{77}\)

Answer (Detailed Solution Below)

Option 2 : \(\frac{2}{87}\)
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Detailed Solution

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கொடுக்கப்பட்டது:

tan A = \(\frac{2}{3}\)

கணக்கீடு:

tan A = \(\frac{2}{3}\)

⇒ \(\rm\frac{sinA}{cosA}\) = \(\frac{2}{3}\)

So, (5 sin2A - 2 cos2A) ÷ (15 sin2A + 3 cos2A) = (5 × 22 - 2 × 32) ÷ (15 × 22 + 3 × 32)

⇒ (5 × 4 - 2 × 9) ÷ (15 × 4 + 3 × 9)

⇒ (20 - 18) ÷ (60 + 27)

⇒ 2 ÷ 87

⇒ \(\frac{2}{87}\)

∴ தேவையான பதில்​ \(\frac{2}{87}\).

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