Question

find the value of Sin 30° + cos 60°​

Answer 1

Answer:

1

Step-by-step explanation:

Use  sin(90∘−θ)=cosθ and  cos(90∘−θ)=sinθ

and  cos2θ+sin2θ=1

Now,

sin30∘⋅cos60∘+cos30∘⋅sin60∘

=sin(90∘−60∘)⋅cos60∘+cos(90∘−60∘)⋅sin60∘

=cos60∘⋅cos60∘+sin60∘⋅sin60∘

=cos260°+sin260°=1

Answer 2

Answer:

1

Step-by-step explanation:

sin 30 + cos 60

1/2 +1/2= 1+1/2

2/2 = 1