" If "bar(a)=xhat i+yhat j+zhat k," then "(bar(a)timeshat i)*(hat i+hat j)+(bar(a)timeshat j)*(hat j+hat k)+(bar(a)timeshat k)*(hat k+i)

If bar(a)=3hat i+4hat j+5hat k then the value of (bar(a)timeshat i)^(2)+(bar(a)timeshat j)^(2)+(bar(a)timeshat k)^(2) is ......

[" If "bar(a)=3hat i+4hat j+5hat k" ,then the value of "],[(bar(a)timeshat i)^(2)+(bar(a)timeshat j)^(2)+(bar(a)timeshat k)^(2)" is "....],[" O "100],[" 110"],[" Q "90],[85]

If bar(a) is any vector the value of hat i times(bar(a)times hat i)+hat j times(bar(a)times hat j)+hat k times(bar(a)times hat k)=

If vec a=xhat i+yhat j+zhat k, then (widehat a xxhat i)*(hat i xxhat j)+(widehat a xxhat j)*(hat j xxhat k)+(widehat a xxhat k)*(hat k+hat i)

If bar(a)=2hat i-hat j+2hat k then the value of |bar(a)timeshat i|^(2)+|bar(a)timeshat j|^(2)+|bar(a)timeshat k|^(2)=

If bar(P)=hat i+hat j+hat k,bar(Q)=2hat i-hat j-hat k , then bar(P)-bar(Q) is

If bar(a)=3hat i-3hat j-4hat k, bar(b)=hat i+2hat j+hat k and bar(c)=3hat i-hat j-2hat k , then [bar(a) bar(b) bar(c)] =

hat(i)*(hat(j)timeshat(k))+hat(j)*(hat(k)timeshat(i))+hat(k)*(hat(i)timeshat(j))=

Let bar(a)=4hat i+3hat j-hat k,bar(b)=5hat i+2hat j+2hat k,bar(c)=2hat i-2hat j)-3hat k and bar(d)=4hat i-4hat j+3hat k; prove that bar(b)-bar(a) and bar(d)-bar(c) are parallel and find the ratio of their moduli.