Menu Close

Find-the-angle-b-w-the-lines-whose-direction-cosines-are-given-by-the-equations-l-m-n-0-l-2-m-2-n-2-0-




Question Number 75444 by vishalbhardwaj last updated on 11/Dec/19
Find the angle b/w the lines  whose direction cosines are given  by the equations l + m + n = 0  , l^2  + m^2  − n^2  = 0 ??
$$\mathrm{Find}\:\mathrm{the}\:\mathrm{angle}\:\mathrm{b}/\mathrm{w}\:\mathrm{the}\:\mathrm{lines} \\ $$$$\mathrm{whose}\:\mathrm{direction}\:\mathrm{cosines}\:\mathrm{are}\:\mathrm{given} \\ $$$$\mathrm{by}\:\mathrm{the}\:\mathrm{equations}\:{l}\:+\:{m}\:+\:{n}\:=\:\mathrm{0} \\ $$$$,\:{l}^{\mathrm{2}} \:+\:{m}^{\mathrm{2}} \:−\:{n}^{\mathrm{2}} \:=\:\mathrm{0}\:?? \\ $$$$ \\ $$
Commented by vishalbhardwaj last updated on 11/Dec/19
sir I corrected it.
$$\mathrm{sir}\:\mathrm{I}\:\mathrm{corrected}\:\mathrm{it}. \\ $$

Leave a Reply

Your email address will not be published. Required fields are marked *