If ` vec a\ ` is a unit vector, then find `| vec x|` in each of the following: `( vec x- vec a)dot'( vec x+ vec a)=12`

If vec a\ is a unit vector, then find | vec x| in each of the following: ( vec x- vec a)dot'( vec x+ vec a)=8

Find | vec x| if for a unit vector vec a ,\ ( vec x- vec a)dot \ ( vec x+ vec a)=15.

find |vec x| , if for a unit vector vec a, (vec x- vec a)( vec x + vec a) =12

Find | vec x| , if for a unit vector vec a ,\ ( vec x- vec a)*( vec x+ vec a)=15.

Find | vec x| , if for a unit vector vec a ,\ ( vec x- vec a).( vec x+ vec a)=15.

If vec p is a unit vector and ( vec x-\ vec p).( vec x+\ vec p)=80 , then find | vec x|

If vec a , vec b are two vectors, then write the truth value of the following statements: vec a=- vec b| vec a|=| vec b| | vec a|=| vec b| vec a=+- vec b | vec a|=| vec b| vec a= vec b

If vec a is a unit vector and (vec x - vec a).(vec x + vec a)=8 , then find |vec x|

If vec x+ vec cxx vec y= vec aa n d vec y+ vec cxx vec x= vec b ,w h e r e vec c is a nonzero vector, then which of the following is not correct? a. vec x=( vec bxx vec c+ vec a+( vec c dot vec a) vec c)/(1+ vec c dot vec c) b. vec x=( vec cxx vec b+ vec b+( vec c dot vec a) vec c)/(1+ vec c dot vec c) c. vec y=( vec axx vec c+ vec b+( vec c dot vec b) vec c)/(1+ vec c dot vec c) d. none of these

If vec a is a unit vector and ( vec x- vec a)dot( vec x+ vec a)=24 , then write the value of | vec x|