Question

2tan^2 45+ cos²30-sin^2 30​

Answer 1

Answer:

$\sf \: 2{tan}^{2} 45°+ {cos}^{2} 30°- {sin}^{2} 60° \\ \\ \sf \implies2+ \frac{3}{4} - \frac{3}{4} \\ \\ \sf \implies2$

Answer 2

tan 45°=1

sin 30°=1/2

cos30°=√3/2

2(1)^2+(1/2)^2-√3/2^2

2+1/4-3/4

2+(-2)/4

8+(-2)/4

6/4=3/2

hope it helps you