The two vectors À =zî +j +3Ảand B =7î - 5- zł are-
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We know angle between two vectors is given by,
cosθ=∣A∣∣B∣A.B--------------(A)
∣A∣=62+62+32=9
∣B∣=72+42+42=9
And A.B=(6i^+6j^−3k^).(7i^+4j^+4k^)=42+24−12=54
Now putting the above values in A we get,
θ=cos−18154
θ=sin−11−322
θ=sin−135
We know angle between two vectors is given by,
cosθ=∣A∣∣B∣A.B--------------(A)
∣A∣=62+62+32=9
∣B∣=72+42+42=9
And A.B=(6i^+6j^−3k^).(7i^+4j^+4k^)=42+24−12=54
Now putting the above values in A we get,
θ=cos−18154
θ=sin−11−322
θ=sin−135
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