Question

evaluate 2tan square 45°+cos square 30°-sin60°​

Answer 1

Step-by-step explanation:

2tan square 45°+cos square 30°-sin60°

tan45°=1

cos30°=√3/2

sin60°=√3/2

2×(1)^2 + (√3/2)^2 - (√3/2)

2 + 3/4 - √3/2

taking LCM

(8 + 3 -2√2)/4

(11-2√2)/4

Answer 2

The actual question should be:-
2 tan^2 45 degree + cos^2 30 degree- sin^2 60 degree
The answer for this is:-
Tan45=1; cos30= under root3/2 ; sin60 =under root 3/2
So,
2(1)+(3/4-3/4)
=2.

Hope it helps!!