Question

Find the values of : cos 600  cos 300

+ sin 600  sin 300​

Answer 1

Answer:

cos 60° × cos 30° + sin60° + sin 30°

Step-by-step explanation:

cos60°=1/2

cos 30°=√3/2

sin 60°=√3/2

sin30°=1/2

1/2×√3/2+√3/2×1/2

= √3 /4+√3/4

=2√3/4

2√3/4 is the answer.....