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3 years ago

Evaluate the expression: v ⋅ w

Mathematics

2 answers:

Ierofanga [76]3 years ago

8 0

Answer:

Value of v.w equals:

-12

Step-by-step explanation:

If we are given two vectors a and b as:

a=<x1,x2,x3> and b=<y1,y2,y3>

Then, a.b equals:

a.b=x1y1+x2y2+x3y3

Here, v = <2, -8, -8>

and w = <-2, 6, -5>

v.w= 2×(-2)+(-8)×6+(-8)×(-5)

= -4-48+40

= -4-8

= -12

Hence, Value of v.w equals:

-12

dexar [7]3 years ago

4 0

V ⋅ w = <2, -8, -8> ⋅ <-2, 6, -5> = 2(-2) + -8(6) + -8(-5) = -4 + -48 + 40 = -12

<span>v ⋅ w = -12</span>

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