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# can someone help me with this vectors question? watch

1. I'm not entirely sure what the question is asking me to do, or how to get the answer.

Given that a = 2i + 5j and b = 3i - j find:

1. μ if a + μb is parallel to the vector i

2. μ if μa + b is parallel to vector j

I don't even know how to start solving this, can someone help me?
2. (Original post by chuchubee)
I'm not entirely sure what the question is asking me to do, or how to get the answer.

Given that a = 2i + 5j and b = 3i - j find:

1. μ if a + μb is parallel to the vector i

2. μ if μa + b is parallel to vector j

I don't even know how to start solving this, can someone help me?
If a vector is parallel to j, then its i component must be 0.
Similarly when its the other way around.

Think about it to convince yourself

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Updated: February 10, 2018
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