

MCQOPTIONS
Saved Bookmarks
1. |
If $$\sin \left( {\theta+ {{30}^ \circ }} \right) = \frac{3}{{\sqrt {12} }}{\text{,}}$$then find $${\text{co}}{{\text{s}}^2}\theta ?$$ |
A. | $\frac{1}{4}$$ |
B. | $\frac{3}{4}$$ |
C. | $\frac{{\sqrt 3 }}{2}$$ |
D. | $\frac{1}{2}$$ |
Answer» C. $\frac{{\sqrt 3 }}{2}$$ | |