Find the value of $\sin 30°$.

$\cos 60°+\sin 30°$ value is _____

In $△\mathrm{ABC},\angle \mathrm{C}=90°$ and $\mathrm{tanA}=1$. Find the value of $2\mathrm{sinA} \mathrm{cosA}$

For the given figure $BC=20 \mathrm{cm}$ and $\angle A=30°$, then $AB=$_____ and $AC=$ _____

If $\sin \theta -\cos \theta =0$, then the value of ${\sin }^4\theta +{\cos }^4\theta$ is

Evaluate 

$\frac{5{\cos }^{2}60°+4{\sec }^{2}30°-{\tan }^{2}45°}{{\sin }^{2}30°+{\sin }^{2}60°}$

Evaluate

$\frac{\sin 30°+\tan 45°-\cos ec 60°}{sec 30°+\cos 60°+cot 45°}$