Question

Find the value of cos²60°+sin²30°+tan²60°​

Answer 1

Step-by-step explanation:

4 cos² 60° + 4 sin² 45° -sin² 30° = 4(1/2)2 + 4 (1/√2)2 - (√3/2)2 = 1 + 2 - 3/4 = 3 - 3/4 = 9/4