Find the sum of `3.overline2` and `5.overline4`.

Find the value of 5.overline 2

IF overlinea+overlineb+overlinec=overline0,|overlinea|=3|overlineb|=5 and |overlinec|=7 , then find the between overline a and overlineb .

If overline(c)=2overline(a)+5overline(b), |overline(a)|=a, |overline(b)|=b and the angle between overline(a) and overline(b) is (pi)/(3) , then c^(2) =

If |overline(a)|=3,|overline(b)|=4 and the angle between overline(a) and overline (b) is 120^@ , then |4overline(a)+3overline(b)| is equal to

Let overline a be vectors parallel to line of intersection of planes p_1 and p_2 through origin. If p_1 is parallel to the vectors 2overline j + 3 overline k and 4overline j - 3 overline k and p_2 is parallel to overline j - overline k and 3overline i - 3overline j, then the angle between overline a and 2overline i + overline j - 2overlinek is (A) pi/2 (B) pi/4 (C) pi/3 (D) pi/6

If overline(a) is perpendicular to overline(b) and overline(c), |overline(a)|=2, |overline(b)=3, |overline(c)|=4 and the angle between overline(b) and overline(c) is (2pi)/(3) , then |[[overline(a), overline(b), overline(c)]]|=

If |overline(c)|=1 and overline(c) is perpedicular to overline(a) and overline(b) such that the angle between overline(a) and overline(b) is (pi)/(4) , then [[overline(a), overline(b), overline(c)]]=