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Chapter 9: Q. 26 (page 603)

If||v||=2, what is||-4v||?

Short Answer

Expert verified

The required value is8.

Step by step solution

01

Step 1. Given Information

We are given ||v||=2and we need to find the value of||-4v||.

02

Step 2. Finding the value

We know that ||伪v||=|伪|||v||.

Using this property we get,

||-4v||=|-4|脳||v||=4脳2=8

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Most popular questions from this chapter

In Problems 47鈥�52, find the unit vector in the same direction asv:v=2i-j

Identify and graph each polar equation. Verify your graph using a graphing utility.

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Match the graph with the polar equation.

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In Problems 13鈥�28, transform each polar equation to an equation in rectangular coordinates. Then identify and graph the equation. Verify your graph using a graphing utility.

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