A) \[\frac{1}{\sqrt{2}}\]
B) \[\sqrt{3}\]
C) \[\frac{1}{2}\]
D) 1
Correct Answer: D
Solution :
\[x\tan 45{}^\circ \cos 60\therefore =\sin 60{}^\circ \cot 60{}^\circ \] \[\Rightarrow \] \[x\times 1\times \frac{1}{2}=\frac{\sqrt{3}}{2}\times \frac{1}{\sqrt{3}}\] \[\Rightarrow \] \[x=1\]You need to login to perform this action.
You will be redirected in
3 sec