If `bar(p)=bar(a)+bar(b),bar(q)=bar(a)-bar(b),|bar(a)|=|bar(b)|=r`, then `|bar(p)timesbar(q)|`=

If bar(u)=bar(a)+bar(b),bar(v)=bar(a)-bar(b),|bar(a)|=|bar(b)|=2 then |bar(u)xxbar(v)|=

(bar(a)+2bar(b)-bar(c))*(bar(a)-bar(b))xx(bar(a)-bar(bar(c)))=

If bar(a)+bar(b)+bar(c)=bar(0) then bar(a)timesbar(b)=

In Delta PQR ,let bar(QR)=bar(a),bar(RP)=bar(b) and bar(PQ)=bar(c) . If |bar(a)|=3,|bar(b)|=4 and (bar(a)*(bar(c)-bar(b)))/(bar(c)*(bar(a)-bar(b)))=(|bar(a)|)/(|bar(a)|+|bar(b)|), then the value of |bar(a)timesbar(b)|^(2) is equal to

If |bar(a)+bar(b)|<|bar(a)-bar(b)| then (bar(a),bar(b)) is

([[bar(a),bar(b),bar(c)]])/([[bar(b),bar(a),bar(c)]]) =

If bar(a),bar(b),bar(c) are non-coplanar vectors such that then bar(b)xxbar(c)=bar(a),bar(c)xxbar(a)=bar(b) and bar(a)xxbar(b)=bar(c), then |bar(a)+bar(b)+bar(c)|=

If bar(a)=2bar(i)-3bar(j)+5bar(k),bar(b)=-bar(i)+4bar(j)+2bar(k) then find bar(a)timesbar(b) and unit vector perpendicular to both bar(a) and bar(b) .

Let |bar(a)|=|bar(b)|=2,bar(x)=bar(a)+bar(b),bar(y)=bar(a)-bar(b) If |bar(x)timesbar(y)|=2{lambda-(bar(a)bar(b))^(2)}^(1/2) .Then the value of (lambda) is

If [bar(a)+2bar(b)2bar(b)+bar(c)5bar(c)+bar(a)]=k[bar(a)bar(b)bar(c)]