Masses sliding on a smooth wedge

[Shivam]

how do u wrote those Tex commands, by simply writing the codes or theirs any other way ?

 

[BvU]

@Shivam, don't start a new issue in an old thread ! Make a new thread instead.
Now that it's done anyway: the PF guidelines refer to a $\LaTeX$ tutorial. If you already know $\TeX$ : enclose the code in ## for inline math, in $$ for displayed math