1.

If $${\text{0}} \leqslant \theta\leqslant {90^ \circ }$$and $$4{\cos ^2}\theta $$- $$4\sqrt 3 \cos \theta $$+ 3 = 0 then the value of $$\theta $$ is?

A.
B.
C.
D.
Answer» B. 0°


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