Let `bar(a) and bar(b)` be unit vector.If the vectors `bar(c)=bar(a)+2bar(b)` and `bar(d)=5bar(a)-4bar(b)` are perpendicular to the each other then angle between `bar(a)` and `bar(b)` is

If |bar(a) |=3 and |bar(b) | =4 The value of mu for which the vectors bar(a) +mubar(b) and bar(a) -mubar(b) are perpendicular

If bar(a) and bar(b) are unit vectors then the vectors (bar(a)+bar(b))xx(bar(a)xxbar(b)) is parallel to the vector

|bar(b)|bar(a)+|bar(a)|bar(b) and |bar(b)|bar(a)-|bar(a)|bar(b) are orthogonal to each other

Let bar(a),bar(b) be two non zero vectors such that vectors 3bar(a)-5bar(b) and 2bar(a)+bar(b) are mutually perpendicular. If bar(a)+4bar(b) and bar(b)-bar(a) are also mutually perpendicular then the cosine angle between bar(a) and bar(b) is

Show that vectors |bar(b)|bar(a)+|bar(a)|bar(b) and |b|bar(a)-|a|bar(b) are orthogonal

bar(a),bar(b),bar(c) are three vectors such that |bar(a)|=1,|bar(b)|=2,|bar(c)|=3 and bar(b),bar(c) are perpendicular to each other.If the projection of bar(b) along bar(a) is same as that of bar(c) along bar(a) then |bar(a)-bar(b)+bar(c)| is equal to

If bar(a) is a unit vector then bar(a)xx{bar(a)xx(bar(a)xxbar(b))=

If bar(a) is a unit vector then bar(a)xx{bar(a)xx(bar(a)xxbar(b))}

If a and b are unit vectors such that |bar(a)timesbar(b)|=bar(a)*bar(b) then |bar(a)-bar(b)|^(2)=

If bar(a) and bar(c) are unit parallel vectors |bar(b)|=6 then bar(b)-3bar(c)=lambdabar(a) if lambda