Question

(cos 0°+ cos 45°+sin 30°) (sin 90° -cos 45°+cos 60°)​

Answer 1

Answer:

2.25. or. 1.75.

Step-by-step explanation:

(1+(1÷√2)+(1÷2))(1−(1÷√2)+(1÷2))

Answer 2

I hope this may helps you.