Find the value of $\frac{\tan 60°}{\sin 60°+\cos 60°}$.

Express the value of ${\cos }^{2}45°+{\sin }^{2}30°$ in the form of $\frac{a}{b}$.

The values of $\cos 60°\times \cos 30°+\sin 60°\times \sin 30°$ is $\frac{\sqrt{k}}{2}$. Find $k$.

If $\sin \theta =\frac{4}{5}$ then find $\cos \theta$.

If $\cos \theta =\frac{15}{17}$ then find $\sin \theta$.

Which of the following statement is true?

Which of the following is the value of sin $90°$?

$2\tan 45°+\cos 45°– \sin 45°=?$

$\frac{\cos 28°}{\sin 62°}=?$