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

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

If |bar(a)xx bar(b)|^(2)+|bar(a).bar(b)|^(2)=144 and |bar(a)|=4 , then |bar(b)| is equal to ……………….

For any vector bar(a) ,the vector (bar(a)timesbar(i))^(2)+(bar(a)timesbar(j))^(2)+(bar(a)timesbar(k))^(2) is equal to A) 3|bar(a)|^(2) B) |bar(a)|^(2) C) 2|bar(a)|^(2) D) 4|bar(a)|^(2)

If |bar(a)|=|bar(b)|=1 and |bar(a)timesbar(b)|=bar(a)*bar(b) , then |bar(a)+bar(b)|^(2)=

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

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

(bar(a)times(bar(b)+bar(c))+bar(b)times(bar(c)+bar(a))+bar(c)times(bar(a)+bar(b)))*(bar(a)timesbar(b))|= (A) |bar(b)timesbar(c)| (B) |bar(c)timesbar(a)| (C) |bar(a)timesbar(b)+bar(b)timesbar(c)+(bar(c)timesbar(a))| (D) 0

bar(a) , bar(b) and bar(c) are three vectors such that bar(a) + bar(b) + bar(c) = bar(0) and |bar(a)| =2, |bar(b)| =3, |bar(c)| =5 ,then bar(a) . bar(b) + bar(b) . bar(c) + bar(c) . bar(a) equals

Let bar(a)=-bar(i)-bar(k) , bar(b)=-bar(i)+bar(j) and bar(c)=bar(i)+2bar(j)+3bar(k) be three given vectors. If bar(r) is a vector such that bar(r)timesbar(b)=bar(c)timesbar(b) and bar(r)*bar(a)=0 , than bar(r)*bar(b) =