Question

с c
Q 3)
The value of sin 60° cos
30° + sin 30° cos 60° is:
A) O​

Answer 1

Answer:

Step-by-step explanation:

Given,

sin 60° cos 30° + sin 30° cos 60°

= √3/2 × √3/2 + 1/2 × 1/2

= (√3)^2 / 4 + 1 / 4

= 3 / 4 + 1 / 4

= 3 + 1 / 4

= 4 / 4

= 1 is the answer.

Answer 2

Answer:

1

Step-by-step explanation:

sin 60°cos 30° + sin 30° cos 60° = sin ( 60° + 30° )

= sin 90°

= 1

since we have the formula

{ sin A cos B + sin B cos A = sin ( A + B ) }

also, the value of sin 90° = 1