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3 years ago

I need help with this.

Mathematics

2 answers:

muminat3 years ago

5 0

Answer:

4sqrt(29)

Step-by-step explanation:

||4v|| = 4 ||v||

4 × sqrt[2² + (-5)²]

4 × sqrt(4 + 25l

4 × sqrt(29)

Where,

sqrt: square root

Inessa05 [86]3 years ago

3 0

Answer:

sqrt(464)

Step-by-step explanation:

|| 4v|| = || 4* (2i - 5j) ||

=|| 8i -20j||

We need to find the magnitude

|| 4v|| = sqrt( 8^2 + (-20)^2))

= sqrt(64+ 400)

= sqrt(464)

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I need help with this. ​

I need help with this.