Hey guys I am not sure if i am on the right track here so i need some advice

Question is:

if , , and express the following vectors in their simplest form:

(i)

(ii)

(iii)

My Solution:

(i)

(ii)

Answer?

(iii)

Answer?

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- May 16th 2010, 03:28 PMmathematicallyretardedHelp with checking Vector Question
Hey guys I am not sure if i am on the right track here so i need some advice

Question is:

if , , and express the following vectors in their simplest form:

(i)

(ii)

(iii)

My Solution:

(i)

(ii)

Answer?

(iii)

Answer? - May 16th 2010, 05:36 PMsa-ri-ga-ma
while removing the brackets, you have to follow the following rule.

-2(a-b) =**-2a + 2b**

-2(a+b) = -2a - 2b

Therefore your second the third problems are wrong. Correct it. - May 16th 2010, 06:18 PMmathematicallyretarded
- May 16th 2010, 06:28 PMmathematicallyretarded
Ok would the (iii) one be

- May 16th 2010, 07:40 PMSoroban
Hello, mathematicallyretarded!

You are making hard work out of it.

This is basically Algebra I . . . combining like terms.

Quote:

Given: .

Express the following vectors in their simplest form:

Quote:

. . . . . .

. . . . . .

Quote:

. . . . . . . . .

. . . . . . . . .

- May 17th 2010, 01:22 AMmathematicallyretarded
Thanks! I have to learn to keep it simple