Question

sin 60°.cos 30°+cos60°.sin30°​

Answer 1

Answer:

1

Step-by-step explanation:

use complementry angles

sin60.sin(90-60) + cos60.cos(90-60)

sin^2 60 + cos^2 60

trignometric identities

answer = 1

Answer 2

Answer:

the answer is 1 how means

Step-by-step explanation:

sin60°*Cos30°+ cos60°*sin30°

$\\ \frac{ \sqrt{3} }{2} \times \frac{ \sqrt{3} }{2} + \frac{1}{2} \times \frac{1}{2}$

$\frac{ \sqrt{9} }{4} + \frac{1}{4}$

$\frac{3}{4} + \frac{1}{4}$

$\frac{3 + 1}{4}$

$\frac{4}{4 }$

$1$