Question

find the value of ?​

Answer 1

Answer:

Hence the answer is 1

Here is the solution.

Answer 2

Sin 60×cos(90-60)+sin 30. Cos(90-30)

Sin 60×sin 60+sin 30×sin 30

Sin^2 60+sin^2 30

{√3/2}^2+(1/2)^2

=3/4 + 1/4

=(3+1) /4

=4/4

=1