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Find the angle between the vectors -4i+3j+5k and 1i+3j+5k?
A. 48 degree
B. 44.1 degree
C. 24.7 degree
D. 22.1 degree
48 degree
dot product of given vectors=30
magnitudes of vectors -4i+3j+5k and1i+3j+5k are 7.07 , 5.92
7.07*5.92*cosa=30
cosa=30/7.07*5.92
cosa=30/41.85
cosa=0.7167
44.1
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