arrow_back Which of the following is the unit vector in direction of $a \times b$ if $a=(2,1,1)$ and $b=(-1,2,2) ?$

7 views
Which of the following is the unit vector in direction of $a \times b$ if $a=(2,1,1)$ and $b=(-1,2,2) ?$

A. $\left(-\frac{1}{2}, \frac{1}{2}, 0\right)$

B. $(0,-1,1)$

C. $\left(0,-\frac{1}{\sqrt{2}}, \frac{1}{\sqrt{2}}\right)$

D. $(0,1,0)$

E. $(0,-5,5)$

Related questions

Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993
Find the norm of $v$, and a unit vector that is oppositely directed to $\mathbf{v} = (1, -1, 2)$
close

Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993
Find a unit vector that is orthogonal to both $\mathbf{u}=(1,0,1)$ and $\mathbf{v}=(0,1,1)$
close

Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993
Find the norm of $v$, and a unit vector that is oppositely directed to $\mathbf{v} = (2, 2, 2)$
close

Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993
Which of the following is the direction vector of the line $$\left\{\begin{array}{l} x=2+t \\ y=-1-t, t \in \mathbb{R} \\ z=t \end{array}\right.$$ Which of the following is the direction vector of the line $$\left\{\begin{array}{l} x=2+t \\ y=-1-t, t \in \mathbb{R} \\ z=t \end{array}\right.$$Which of the following is the direction vector of the line $$\left\{\begin{array}{l} x=2+t \\ y=-1-t, t \in \mathbb{R} \\ z=t \end{array}\right.$$ ...
close

Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993
Which of the following is the direction vector of the line $$\left\{\begin{array}{l} -x=2+t \\ y=-1-t, t \in R \\ z=t \end{array}\right.$$ Which of the following is the direction vector of the line $$\left\{\begin{array}{l} -x=2+t \\ y=-1-t, t \in R \\ z=t \end{array}\right.$$Which of the following is the direction vector of the line $$\left\{\begin{array}{l} -x=2+t \\ y=-1-t, t \in R \\ z=t \end{array}\right.$$ &nbsp; ...
Find the unit vector $\mathbf{u}$ that has the same direction as $\mathbf{v}=(2,2,-1)$.
Which of the following is the equation of the plane which passes through the point $A(-3,4,-3)$ and contains the line $v=(-1,3,-2)+t(-2,1,5), t \in \mathrm{R}$