9Th math new book 2025 Exercise 6.4 complete||PCTB|| TRIGONOMETRY Ratio

This video is about review exercise 6.4 of chapter 6 or unit 6 which is trigonometry of class 9 mathematics and it covers angles degrees and radians and coterminal angles and trigonometric ratios of special angles etc. This video is also good for pre nine students who want to start their study earlier than their actual classes. 0:00​ Concept 9:00​ Question 1 13:50​ Question 2 19:09​ Question 3 #9thmathnew​ #9thmathnewbook​