Guidance. .

dear, install desmos app from playstore, it is nice app, you can make any type of graph in this app. it is very helpful and user friendly app too..

you can do questions from calculus of single variable and multiple variable from Kreyszig. other than that, you can use Desmos, it is an app. you can install it from play store. in...

ok mam so maths NCERT of which class??

yes dear it's ncert books . you can take it's help or one book is introduction to graph theory by DOuglas. both will help u. but I suggest u to go through with ncert.