Question

(-18+5,2-9,7)*(-3,4-8,9+12,2)

Answer 1

Відповідь:

2,25

Покрокове пояснення:

(-18+5,2-9,7)*(-3,4-8,9+12,2) = 2,25

-18+5,2-9,7 = -22,5

-3,4-8,9+12,2 = -0,1

-22,5 * (-0,1) = 2,25

Answer 2

To multiply two vectors, you can use the dot product (also known as the scalar product). The dot product of two vectors A and B is given by:

A · B = (A₁ * B₁) + (A₂ * B₂) + (A₃ * B₃)

In this case, you have two vectors:

A = (-18 + 5.2, -9.7) B = (-3.4, -8.9, 12.2)

Now, calculate the dot product:

A · B = ((-18 + 5.2) * (-3.4)) + ((-9.7) * (-8.9)) + ((-9.7) * 12.2)

A · B = (-12.8 * -3.4) + (87.13) + (-118.34)

A · B = 43.52 + 87.13 - 118.34

A · B ≈ 12.31

So, the dot product of the two vectors is approximately 12.31.