3 years ago

Help show work please

Mathematics

1 answer:

olya-2409 [2.1K]3 years ago

5 0

Answer:

8x squared

Step-by-step explanation:

all you do is multiply the 4 and 2 to get the 8 and the x's multiply together causing it to square it making it 8x squared

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natali 33 [55]

Answer:

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Step-by-step explanation:

The vector projection when the angle θ not known can be calculated using the following property of the dot product:

$proj_uv=\frac{u\cdot v}{||u||^2} u$

Where the dot product of two vectors is given by:

$u\cdot v= $$\sum_{i=1}^{n} u_iv_i= u_1v_1+u_2v_2+...+u_nv_n$$$

And the magnitude of a vector is given by:

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Now let's find the magnitude of u:

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So:

$||u||^2=117$

Therefore:

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3 years ago

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