WBJEE · Maths · Trigonometric Ratios & Identities
\[
\text { The number of points of intersection of } 2 y=1 \text { and } y=\sin x \text {, in }-2 \pi \leq x \leq 2 \pi \text { is }
\]
- A 1
- B 2
\((8)^{1+|\cos x|+\left|\cos { }^2\right|+}\) - C \(\infty^3=4^3\)
- D 4
Answer & Solution
Correct Answer
(D) 4
Step-by-step Solution
Detailed explanation
Hints : \(y=\frac{1}{2}=\sin \mathrm{x}\) \(-2 \pi \leq x \leq 2 \pi\) \[ x=\frac{\pi}{6}, \frac{5 \pi}{6},-\frac{7 \pi}{6},-\frac{11 \pi}{6} \] No. of sol \(^{\mathrm{n}} 4\)
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