vectors-m

Related Questions

• If $|a|\,=\,|\mathbf{b}|,$ then $(a+b)\,.\,(a-b)$ is

  ---

• If the position vectors of the point A, B, C be i, j, k respectively and P be a point such that $\overrightarrow{AB}=\overrightarrow{CP},$ then the position vector of P is

  ---

• The vectors a, b and a + b are

  ---

• If the resultant of two forces of magnitudes P and Q acting at a point at an angle of ${{60}^{o}}$ is $\sqrt{7}Q,$ then P/Q is

  ---

• $\mathbf{a},\,\mathbf{b}$ and c are three vectors with magnitude $|\mathbf{a}|\,=4,$ $|\mathbf{b}|\,=4,$ $|\mathbf{c}|\,=2$ and such that $\mathbf{a}$ is perpendicular to $(\mathbf{b}+\mathbf{c}),\,\mathbf{b}$ is perpendicular to $(\mathbf{c}+\mathbf{a})$ and $\mathbf{c}$ is perpendicular to $(\mathbf{a}+\mathbf{b}).$ It follows that $|\mathbf{a}+\mathbf{b}+\mathbf{c}|$ is equal to

  ---