Find the component form of v.vector v lies in the xz- plane,has magnitude 4 ,and makes an angle of 60° with the positive z-axis.
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(xi+zk).(k)=|a|•|k|•cos60°
z=4×1/2
z=2
|√x²++2²|=4
x²=16-4
x=√12
x=2√3
vector v =(2√3i+2k)
z=4×1/2
z=2
|√x²++2²|=4
x²=16-4
x=√12
x=2√3
vector v =(2√3i+2k)
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