Question

is it is neceesay to do extra book of math like rd sharma etc to clear math class9 exam is paper come from only ncrt or not of class9

Answer 1

IT IS NOT NECESSARY IF U LEARN ALL THE FORMULA'S
BUT PRACTICE OF EXTRA QUESTIONS IS NEEDED AS 9TH MATH IS HARDER THAN THE 10TH

Answer 2

About 80% came from ncert and 20% extra but too have more and more practice help books are very useful. You can also take help from 100% success of evergreen or reliable