Let `vec a,vecb,vecc` be three unit vectors such that `|veca+vecb+vecc|=1 and veca` is perpendicular to `vecb.if vec c` makes angle `alpha and beta` with `veca and vecb` respectively, then `cos alpha+cosbeta=`

Let veca,vecb and vecc are three vectors such that |veca|=3, |vecb|=3, |vecc|=2, |veca+vecb+vecc|=4 and veca is perpendicular to vecb,vecc makes angle theta and phi with veca and vecb respectively, then cos theta+cos theta=

Let veca , vecb , vecc be three unit vectors such that |veca + vecb +vecc| =1 and veca bot vecb , " if " vecc makes angles delta beta " with " veca, vecb respectively, then cos delta + cos beta is equal to

Let veca , vecb , vecc be three unit vectors such that |veca + vecb +vecc| =1 and veca bot vecb , " if " vecc makes angles delta beta " with " veca, vecb respectively, then cos delta + cos beta is equal to

if veca , vecb ,vecc are three vectors such that veca +vecb + vecc = vec0 then

if veca , vecb ,vecc are three vectors such that veca +vecb + vecc = vec0 then

If veca,vecb and vecc are unit vectors such that veca+vecb+vecc=vec0 then angle between veca and vecb is

If veca , vecb , vecc are unit vectors such that veca+ vecb+ vecc= vec0 find the value of (veca* vecb+ vecb* vecc+ vecc*veca) .

If veca,vecb,vecc are unit vectors such that veca+vecb+vecc = vec0 , find the value of veca.vecb+vecb.vecc+vecc.veca .