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SSC CGL 2017 PYQ — Question 89

SSC CGL Tier II Quant - 12/01/2017 • Quantitative Aptitude • Q89

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The value of the expression 2(sin6θ + cos6θ) – 3(sin4θ + cos4θ) + 1 is:

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Correct answer: B

Explanation

  The correct answer is option 2 i.e. 0

Application

2(sin6θ + cos6θ) – 3(sin6θ + cos6θ) + 1

Put θ = 0°

⇒ 2(0 + 1) – 3(0 + 1) + 1

⇒ 2 – 3 + 1

⇒ 0