Question

cos30 cos30 -sin30 sin45

Answer 1

Answer:

Step-by-step explanation:

✓3-1/2✓2..

Answer 2

Answer: (3-√2)/4

Step-by-step explanation:

cos30°cos30°-sin30°sin45°

(Substituting values of trigonometric ratios)

=(√3/2)(√3/2) - (1/2)(√2/2)

=(3/4)-(√2/4)

= (3-√2)/4