JEE PYQ: Trigonometric Ratios And Identities Question 2
Question 2 - 2021 (25 Feb Shift 2)
If $S0$, find $\sin x + \cos y$:
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(1) $\frac{4+\sqrt{3}}{2}$
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(2) $\frac{1-\sqrt{2}}{2}$
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(3) $\frac{\sqrt{5}}{2}$
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(4) $\frac{1}{2}$
Show Answer
Answer: (1) $\frac{\sqrt{3}+1}{2}$
Solution
$x = y = 60°$. $\sin 60° + \cos 60° = \frac{\sqrt{3}+1}{2}$.