Ask a New Question

Question

Determine the angle that vector a= (12,-3,4) makes with the y-axis.
15 years ago

Answers

Damon
A vector B along y axis could be 0i + 1 j + 0 k
Then what is A dot B ?
B = 0 i + 1 j + 0 k
A = 12i - 3 j + 4 k

A dot B = 0 -3 + 0 = -3
|A| = sqrt (144+9+16)
|B| = 1
cos (T) = -3/(|A||B|)
15 years ago

Related Questions

Determine the vector having initial point P(x¡,y¡,z¡) and the terminal point Q(x¡¡,y¡¡,z¡¡) and find... Given that Vector BD Angle ABC, Measures Of Angle ABC =6x - 12, And Angle = 72 Degres, Which Equatio... Find the angle that the vector R = A + B makes with the positive x axis, use counter- clockwise as... Determine whether the vector w=(0, -5, 7) can be expressed as a linear combination of the vectors v1... Determine the vector u = AB and its magnitude, given A(3,7,-2) and B(9,1,5). find the angle between vector U=<2,3> and V=<1,-5> answers: 88 degrees, 45 degrees, 135 degrees, or... Find the angle between vector u=3i+\sqrt(3)j and vector v=-2i-5j to the nearest degree. A. 82 B. 3... Find the angle between vector bold lower u equals 3 bold lower I plus start root 3 end root bold low... What is the vector of angle A (-6,-2) B (-4, -5) and C (-1,-5) to E (4,6) G (7, 6) and H 2, 3) Find the angle between vector bold lower u equals 3 bold lower I plus start root 3 end root bold low...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use