Question

sin60 degree cos30 degree + cos60 degree sin30 degree​

Answer 1

Step-by-step explanation:

Let see how we can solve

As 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 expression,

1/2 × √3/2 + √3/2 × 1/2

= √3/4 + √3/4

= 2√3/4

= √3/2

Thus, cos 60° x cos 30° + sin 60° x sin 30° = √3/2

Answer 2

Answer:

1

Step-by-step explanation:

=(√ 3/2)x(√3/2)+(1/2)x(1/2)

=√3x√3/2x2+1/2+2

=3/4+1/4

=3+1/4

=4/4

=1