Question

2 sin² 30. tan 60 –3 cos² 60°. sec² 30°

Answer 1

2×1/4.√3-3×1/4.4/3
=1/2.√3-3×1/3
=1/2√3-1
=2√3/2-1
= -1+√3
=0.732

Answer 2

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