Question

(-20*sin162) / (sin81)*(sin9)

Answer 1

(-20*sin162)/(sin81)*(sin9)=
(-20*0,309)/(0,9877)*(0,1564)=-6,18/0,15447628=-40,006
значение синуса узнаём из таблицы Брадиса.

Answer 2

To calculate the expression (-20 * sin(162)) / (sin(81) * sin(9)), we'll first evaluate the trigonometric functions and then perform the necessary multiplication and division.

Using a calculator or a programming language with trigonometric functions, we find:

sin(162) ≈ -0.8733 sin(81) ≈ 0.9880 sin(9) ≈ 0.1564

Now substituting these values into the expression:

(-20 * sin(162)) / (sin(81) * sin(9)) ≈ (-20 * -0.8733) / (0.9880 * 0.1564) ≈ 17.466 / 0.1545 ≈ 113.056

Therefore, (-20 * sin(162)) / (sin(81) * sin(9)) ≈ 113.056.