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What is the value of (sin 30° + cos 30°) - (sin 60° + cos 60°)?

This question was previously asked in
Bihar STET TGT (Maths) Official Paper-I (Held On: 04 Sept, 2023 Shift 2)
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  1. -1
  2. 0
  3. 1
  4. 2

Answer (Detailed Solution Below)

Option 2 : 0
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Detailed Solution

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Concept use:

sin 30° = 1/2 , cos 30° = √3/2

sin 60° = √3/2 , cos 60° = 1/2 

Calculation:

(sin 30° + cos 30°) - (sin 60° + cos 60°) = 1/2 + √3/2 - (√3/2 + 1/2) = 0

Hence, The Correct Answer is 2. 

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