Question

2tz−t2z, если t=22,12−10,42, а z=58−55,5.

Answer 1

Ответ:

Пошаговое объяснение:

t=22,12−10,42=11,7

z=58−55,5=2,5

2tz-t²z=tz(2-t)=11,7·2,5(2-11,7)=117/10 ·5/2 ·(-97/10)=-11349/40=-283,725

Answer 2

To calculate the value of the expression 2tz - t^2z when t = 22.12 - 10.42 and z = 58 - 55.5, follow these steps:

Step 1: Substitute the given values of t and z into the expression 2tz - t^2z.

Step 2: Perform the arithmetic operations.

Let's calculate it step-by-step:

Step 1: t = 22.12 - 10.42 = 11.7 z = 58 - 55.5 = 2.5

Step 2: 2tz = 2 * 11.7 * 2.5 = 58.5 t^2z = (11.7)^2 * 2.5 = 169.29 * 2.5 = 423.225

Finally, we get: 2tz - t^2z = 58.5 - 423.225 ≈ -364.725

So, when t = 22.12 - 10.42 and z = 58 - 55.5, the value of the expression 2tz - t^2z is approximately -364.725.