200x 9, nine times two hundred,
<span>a · b = |a| |b| cos(theta)
=|a| * 14 * cos(45)
</span>a · b |a| =3
=>
|a| * 14 * cos(45) * |a| =3
|a| ² =3/(14cos(45))
|a| = sqrt(3/(14cos(45)))
=0.63868 (approx.)
A numeric form using exponents.
Use the equation
-2 - 5 = -7
0 - -3 = 3
-4 - 1 = -5
0 - 5 = - 5
this is all i am going to tell you
think you can figure the rest out on your own
Hope i helped mate!