Sin(π) / 4 × cos(π) / 3 – ctg(3 × π) / 2 × sin(π) /2

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вопрос Следующий
вопрос

To solve this expression, we first need to evaluate each trigonometric function at the given angles:

sin(π) = 0,
cos(π) = -1,
ctg(3 × π) = cot(3π) = -1/tan(3π) = -1/0 (undefined),
sin(π/2) = 1.

Now we can substitute these values into the expression:

0 / 4 × (-1) / 3 - (-1) / 2 × 1 / 2
= 0 × (-1/3) + 1/2
= 1/2.

Therefore, the final result is 1/2.