Verifying That Multiplying a Matrix by Its Inverse Is
Commutative
Determine if these matrices are inverses by
calculating AB
A =1? 3
B-
C11 C12
AB=
LC21 C22_
C12 =
C22=

Iwill give you ! what is the measure of ∠v ?

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.

X² + 4y² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis