Consider two vectors a~ and b~ and their resultant a~ + b~ . the magnitudes of the vectors a~ and b~ are, respectively, 15 and 7.3 and they act at 86◦ to each other. a~ b~ a~ + b~ find the magnitude of the resultant vector a~ + b~ . 005 (part 2 of 2) 4.0 points find the angle between the direction of the resultant vector a + b and the direction of the vector a. answer in units of ◦ .

17.13 ,1.31°

Explanation:

Magnitude of vector A = 15

Magnitude of vector B = 7.3

Angle between A and B is θ = 86°

Let the magnitude of the resultant is R.

use the formula for the resultant of two vectors

R = 17.13

Let the angle between A and R is α.

tan α = 0.02286

α = 1.31°

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

they should be similar or the same