У вашего броузера проблема в совместимости с HTML5
In this video lecture I taught you Q1 Q2 of Chapter 10 exercise 10.2 class 10 maths.
Like our Facebook page for all updates - https://www.facebook.com/Subject-Teacher-127174091211187/
Chapter 4 Quadratic equations- https://www..com/playlist?list=PLZihDlFUnEczpb9n7rHwWcscpfipW8hoI
Chapter 3 pair of linear equations in two variables -- https://www..com/playlist?list=PLZihDlFUnEczbRwlfLHi8FwX9emKb2a90
Chapter 2 polynomials (All exercises)- https://www..com/playlist?list=PLZihDlFUnEczizNIhE3KXycLYPfqel2_B
Chapter 1 Real Numbers- https://www..com/playlist?list=PLZihDlFUnEcwBlJpAY66m8lB0BnnLhHk8
Photo credit : photos in the videos are clicked by NCERT cbse books of class 10.
After some time I will make a website to give proper solutions of your problems and provide all videos in optimized way as you want.
About subject teacher: In this channel I will teach full course of Maths class 10. I will help each and every student in solving the problems. All students can post their problems on FB page. I will definetely solve it and post it in within 1 hour maximum.