2 sin 30°+3 cos 60°-3 tan 45°
Special Angles Value:
sin30° = 1/2 = 0.5
cos60° = 1/2 = 0.5
tan45° = 1
substitute values into the equation:
2 sin 30° + 3 cos 60°- 3 tan 45°
2(0.5) + 3(0.5) - 3(1)
1 + 1.5 - 3
2.5 - 3
-0.5
or if answer needs to be in fraction, revert it back as: 0.5 = 1/2
- 1/2
So answer is -1/2 or -0.5
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