Consider three vectors:
A = 4 i - 9 j + 6 k
B = -1 i + 2 j
C = (6cos60) i + (6sin60) j
Evaluate the magnitude of the quantity A + (B x C )
I cannot have a graphing calculator on the test (only a scientific one), so matrices are not possible.
I tried taking the dot product of B and C and got about 53.65. But then finding the quadrature of the x components, y components, and z components throws me off.