Question

1. Evaluate the following:
(1) sin 60° cos 30° + sin 30° cos 60°​

Answer 1

Answer:

1

Step-by-step explanation:

sin(a+b)=sinacosb+cosasinb

in the given question a=60degrees,b=30degrees.

so result is sin(90degrees)=1

Answer 2

Step-by-step explanation:

sin 60° cos 30° + sin 30° cos 60°

= √3/2×√3/2 + 1/2×1/2

= 3/4+1/4

= 4/4

= 1