For any vectors `vecr` the value of
`hatixx(vecrxxhati)+hatjxx(vecrxxhatj)+hatkxx(vecrxxhatk)`, is

For an vector veca the value of hatixx(vecaxxveci)+hatjxx(vecaxxhatj)+hatkxx(vecaxxveck) , is

For any vector veca prove that hatixx(vecaxxhati)+hatjxx(vecaxxhatj)+hatkxx(vecaxxhatk)=2veca

For any vector vecr , ( vecr.hati) hati + ( vecr.hatj) hatj + ( vecr.hatk) hatk =

Evaluate: hatixx(hatjxxhatk)+hatjxx(hatkxxhati)+hatkxx(hatixxhatj)

If veca is any vector and hati,hatj and hatk are unit vectors along the x,y and z directions then hatixx(vecaxxhati)+hatjxx(vecaxxhatj)+hatkxx(vecaxxveck)= (A) veca (B) -veca (C) 2veca (D) 0

If veca is any vector and hati,hatj and hatk are unit vectors along the x,y and z directions then hatixx(vecaxxhati)+hatjxx(vecaxxhatj)+hatkxx(vecaxxveck)= (A) veca (B) -veca (C) 2veca (D) 0

For any vector vecr prove that vecr=(vecr.hati)hati+(vecr.hatj)hatj+(vecr.hatk)hatk .

For any vector vecr = xhati+yhatj+zhatk , prove that vecr = (vecr.hati)hati+(vecr.hatj)hatj+(vecr.hatk)hatk .