If `(bar(a)+bar(b))*(bar(a)+bar(b))=|bar(a)|^(2)+|bar(b)|^(2),bar(a)!=0,bar(b)!=0`, then

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

(bar(a)xxbar(b))^(2)+(bar(a)*bar(b))^(2)=144 and |bar(a)|=4,|bar(b)|=

If (bar(a),bar(b))=30^(@) then (bar(a),-bar(b))=

If |bar(a)+bar(b)|=1 , |bar(a)-bar(b)|=7 , |bar(a)|=4 then |bar(b)|

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

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

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

[bar(a)" "bar(b)+bar(c)" "bar(a)+bar(b)+bar(c)]=0