Question

(cos² 30° - sin² 45°)/( cos 60° + sin 30°) is equal to *

1 point

-1/4

1/4

-1/2

1/2

​

Answer 1

1/4

we know

cos30 = √3/2

sin45 = 1/√2

cos60 = 1/2

cos30 = 1/2

now solving the question

(cos²30 - sin²45)/cos60 + sin30

(3/4 - 1/2) / 1/2 + 1/2

3/4 - 1/2

3/4-2/4

1/4

I m not sure about the answer so u can recheck it.