Question

The value of cos 60degree in to cos30 degree in to sin 60 degree in to sin30 degree​

Answer 1

Answer:

cos60°×cos30°×sin60°×sin30°

1/2 ×√3/2×√3/2×1/2=3/16

hope it helps you and don't forget to follow mè

Answer 2

Step-by-step explanation:

We know that

cos 60= 1/2

cos 30= √3/2

sin 60= √3/2

sin 30=1/2

Substituting all the values in the given equation we get

1/2 + √3/2 + √3/2 + 1/2

= √3/4 + √3/4

= 2√3/4

= √3/2

Answer

cos 60∘× cos 30∘+sin 60∘× sin30∘= √3/2