Question

Het
2 tan ² 45° + cos² 30 - Sin² 60°​

Answer 1

2 tan^2 45°+cos^2 30 - sin^2 60°

2× 1^2 + (√3/2)^2 - (√3/2)^2

2+3/4-3/4

8+3-3/4

8/4=2