# How many ways are there to solve this question?

## Homework Statement

vector a = (0,1,0)
vector b = (-2,1,1)
vector c = (1, a-2, a+2)

for what value of a are the three vectors coplanar?

## Homework Equations

don't know how to do this

## The Attempt at a Solution

didn't try anything

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## Homework Statement

vector a = (0,1,0)
vector b = (-2,1,1)
vector c = (1, a-2, a+2)

for what value of a are the three vectors coplanar?

## Homework Equations

don't know how to do this

## The Attempt at a Solution

didn't try anything
If a is a parameter, you shouldn't name the vector a as well.

Have you read the definition coplanar?

Well let's start at the fundamental level.

Do you know what coplanar means?

SammyS
Staff Emeritus
Homework Helper
Gold Member
After looking at the title of this thread ... I can think of two ways.

What are those two ways?

Mark44
Mentor
Locking the thread, because the OP has not shown any effort at solving this problem.