Friday

July 25, 2014

July 25, 2014

Posted by **Anonymous** on Saturday, July 27, 2013 at 11:06am.

- linear algebra -
**Reiny**, Saturday, July 27, 2013 at 2:13pmif orthogonal, then their dot product is zero

(2,x,7-x) . (x , 3, -2) = 0

2x + 3x - 14 + 2x = 0

7x = 14

x = 2

check:

(2,2,5).(2,3,-2) = 4 + 6 - 10 = 0

**Related Questions**

Math - Mark each of the following True or False. ___ a. All vectors in an ...

math - Find an orthonormal basis for the subspace of R^3 consisting of all ...

math - given that vectors(p+2q) and (5p-4q) are orthogonal,if vectors p and q ...

math - given that vectors(p+2q) and (5p-4q) are orthogonal,if vectors p and q ...

Linear Algebra, orthogonal - The vector v lies in the subspace of R^3 and is ...

Linear Algebra - Hello ! i try to solve Linear algebra 2 questions(but need them...

Math - Vectors - Prove that vector i,j and k are mutually orthogonal using the ...

vectors - how do you determine if two vectors are a) Collinear b) orthogonal?

college Algebra/Linear Algebra - Find a Basis for each of these substances of R^...

Linear Algebra - Knowing u = (4,0,-3), v = (x,3,2) and that the orthogonal ...