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# ne watch

1. how to calculate the unit vector of a vector whose magnitude is given is parallel to another one
2. Unit vector is a vector which has a modulus or magnitude (size).

Any parallel vector to the vector may be written a λ which is a non-zero scalar.

Don't know how I can help without a question.
3. Interesting title.
4. (Original post by Arqam Naveed)
how to calculate the unit vector of a vector whose magnitude is given is parallel to another one
If you are given that your vector is parallel to some vector then the unit vector in that direction is given by .
5. thanks guys
6. The first term of an arithmetic progression is −2222 and the common difference is 17. Find thevalue of the first positive term.
7. (Original post by Arqam Naveed)
The first term of an arithmetic progression is −2222 and the common difference is 17. Find thevalue of the first positive term.
What's your expression for u_n? What does this get you when you set u_n to 0?
8. I get 5
9. (Original post by Arqam Naveed)
I get 5
Yep, that's correct.

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Updated: April 11, 2016
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