The equation 2cos-1 x + sin-1 x = \(\frac{11 \pi}{6}\) has
A. no solution
B. only one solution
C. two solutions
D. three solutions
Answer:A
The equation 2cos-1 x + sin-1 x = \(\frac{11 \pi}{6}\) has
A. no solution B. only one solution C. two solutions D. three solutions