PLASSSSSSSSSSSSSSSSSE! for god sake add some vidoes we r not able to u nderstand the chapter and yes its better stuiding from the book beacause there is noo diffrence beetween our maths text book n meritnation

Thanks for letting know your concern to us. Your suggestion has been taken into consideration. We keep on adding and updating our animations/videos from time-to-time, based on our users feedback. 

Although the process of video addition is a lengthy one and it will not be completed in the current academic session. 

So, we advised you to go through the existing study material and try to understand the explained concept on your own and write if you encounter any difficulty in it.