Question

The value of 2 tan²45° + 3 cos² 30° - sin² 60° is​

Answer 1

Step-by-step explanation:

hey mate!!!

2(1) + 3(√3/2 )^2 - (√3/2)^2

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

= 2+ 9/4 - 3/4

= 8+9-3/4

= 14/4

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Answer 2

Step-by-step explanation:

tan45°=1

cos30°=√3/2

sin60°=√3/2

2(1)2+3(√3/2)2-(√3/2)2

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

2+9/4-9/4

2