vectors-m

Related Questions

• The components of a vector a along and perpendicular to the non-zero vector b are respectively

  ---

• If in a triangle $\overrightarrow{AB}=\mathbf{a},\,\,\overrightarrow{AC}=\mathbf{b}$ and D, E are the mid-points of AB and AC respectively, then $\overrightarrow{DE}$ is equal to

  ---

• If $\mathbf{a}=3\mathbf{i}-2\mathbf{j}+\mathbf{k},\,\,\mathbf{b}=2\mathbf{i}-4\mathbf{j}-3\mathbf{k}$ and $\mathbf{c}=-\mathbf{i}+2\mathbf{j}+2\mathbf{k},$ then $\mathbf{a}+\mathbf{b}+\mathbf{c}$ is

  ---

• If a and b are two unit vectors such that $\mathbf{a}+2\,\mathbf{b}$ and $5a-4b$ are perpendicular to each other, then the angle between a and b is

  ---

• If $\mathbf{a}=2\mathbf{i}+2\mathbf{j}-\mathbf{k}$ and $|x\,\mathbf{a}|\,\,=1,$ then $x =$

  ---