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