Question

Prove :cos 30° + sin 60°
1+ sin 30° + COS 60º = cos 30°​

Answer 1

Answer:

$\cos30 + \sin60 + 1 + \sin30 + \cos60 \\ = \frac{ \sqrt{3} }{2} + \frac{ \sqrt{3} }{2} + 1 + \frac{1}{2} + \frac{1}{2} \\ = 2 \times \frac{ \sqrt{3} }{2} + 2 \times \frac{1}{2} + 1 \\ = \sqrt{3} + 1 + 1 \\ = \sqrt{3} + 2 \\ \\ \cos30 = \frac{ \sqrt{3} }{2}$

hence they are not equal

Answer 2

Answer:

$cos \: 30 = \frac{ \sqrt{3} }{2}$

Step-by-step explanation:

It is the correct answer.