2sin² 30tan60-3cos² 60sec²30
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we know that tan60=cot30 2si
sin^230cot30=2sin30cos30=sin60 =3^1/2 ÷2
3cos60cos60sec30sec30=3×1/4×4/3
2sin² 30tan60-3cos² 60sec²30= 3^1/2 ÷2 -1
sin^230cot30=2sin30cos30=sin60 =3^1/2 ÷2
3cos60cos60sec30sec30=3×1/4×4/3
2sin² 30tan60-3cos² 60sec²30= 3^1/2 ÷2 -1
tejesh87:
if my answer is correct please put thanks
sorry i done mistake i will corect right now
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