Question

Period of $(4\cos ⥂ \text{ec}\theta - 5)(3\cos ⥂ \text{ec}\theta - 4) = 0$is.

• A. $\text{cos} ⥂ \text{ec}\theta = \frac{5}{4},\frac{4}{3}$
• B. $\sin\theta = \frac{4}{5},\frac{3}{4}$
• C. $\sin 2x$
• D. $= \frac{2\pi}{2} = \pi$

Answer 1

Answer: (C)

$\sin 2x$

Answer 2

$\propto$

Hence period$\sin(126^{o})$.