Question

4cos¢ 60°+4sin¢ 45°-sin¢ 30°=11/5​

Answer 1

cos 60° = 1/2

sin 45° = 1/√2

sin 30° =1/2

Now, according to question

4×1/4 + 4 × 1/2 - 1/4.

1 + 2 -1/4

=11/4

hope it helps