The length of the longest interval, in which the function 3 sin x – 4sin3x is increasing, is
A. \(\frac{\pi}{3}\)
B. \(\frac{\pi}{2}\)
C. \(\frac{3 \pi}{2}\)
D. π
Answer:A
The length of the longest interval, in which the function 3 sin x – 4sin3x is increasing, is
A. \(\frac{\pi}{3}\) B. \(\frac{\pi}{2}\) C. \(\frac{3 \pi}{2}\) D. π