Simplify the following :

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SSC CGL 2022 Tier-I Official Paper (Held On : 03 Dec 2022 Shift 3)
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  1. Cos ()
  2. Sin ()
  3. Cos ()
  4. Sin ()

Answer (Detailed Solution Below)

Option 3 : Cos ()
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SSC CGL Tier 1 2025 Full Test - 01
100 Qs. 200 Marks 60 Mins

Detailed Solution

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Given:

Concept used:

cos(x + y) = cos x × cos y - sin x × sin y

π = 180°

Calculation:

⇒ 

⇒ 

⇒ cos(60° + X)

⇒ Cos ()

∴ The simplified value is Cos ().

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