6 sin 30° - 2 sin 90° + 3tg 180°

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вопрос

To simplify this expression, we can first evaluate the trigonometric functions at their respective angles:

sin 30° = 1/2
sin 90° = 1
tg 180° = 0 (tan is undefined at 180 degrees)

Now substitute these values back into the expression:

6(1/2) - 2(1) + 3(0)
= 3 - 2 + 0
= 1

Therefore, the simplified expression is 1.