Question

Find the value of : cos^2 (45 degrees) + sin^2 (30 degrees)​

Answer 1

$\cos45 \degree = \frac{1}{ \sqrt{2} }$

sin 30°=1/2

so cos²45°+sin²30°

=>

$\frac{1}{2} + \frac{1}{4}$

=3/4

$\sf \pink{ \therefore cos²45°+sin²30° = \frac{3}{4} }$