If f(= sin x – cos x, then interval in which function is decreasing in 0 ≤ x ≤ 2π, is
A. \(\left[\frac{5 \pi}{6}, \frac{3 \pi}{4}\right]\)
B. \(\left[\frac{\pi}{4}, \frac{\pi}{2}\right]\)
C. \(\left[\frac{3 \pi}{2}, \frac{5 \pi}{2}\right]\)
D. None of these
Answer:D
If f(= sin x – cos x, then interval in which function is decreasing in 0 ≤ x ≤ 2π, is
A. \(\left[\frac{5 \pi}{6}, \frac{3 \pi}{4}\right]\) B. \(\left[\frac{\pi}{4}, \frac{\pi}{2}\right]\) C. \(\left[\frac{3 \pi}{2}, \frac{5 \pi}{2}\right]\) D. None of these