9th class math 1a question answer | class 9 algebra exercise 1a question answer

Added: 2026-05-05

[00:00:01]So hello everyone welcome to class Exercise.

[00:00:24]Fore class 9th.

[00:00:46]Okay.

[00:00:52]11.

[00:01:05]Okay.

[00:01:18]Okay. Option belongs to not belongs to equal belongs to not belongs to does not belong belongs to. Okay.

[00:02:00]A C.

[00:02:07]Okay.

[00:02:23]element.

[00:02:26]Okay.

[00:02:32]A c.

[00:02:36]Okay.

[00:02:40]ABC.

[00:02:43]Okay.

[00:03:01]both.

[00:03:04]Okay.

[00:03:21]A is a subset of B.

[00:03:44]difference.

[00:03:46]Next number Okay.

[00:04:26]Not equal to. Okay. Number two.

[00:04:48]Okay.

[00:04:56]B 4 number 11 A union B A union B 1 2 3 Union B 3 4 5 1 2 3 4 5 Okay 1 2 3 4 A 1 2 3 Union C 5.

[00:06:06]Okay.

[00:06:08]1 2 3 5 B intersection C 3 4 5 intersection C element Okay.

[00:06:48]Number 11. A intersection B A intersection B intersection C intersection B 1 2 3 intersection B 3 4 5 Okay A intersection cction 5 set. Okay.

[00:07:52]Next number 4us C 5 6 3 4 5 6 3 4 Okay. Next at number 1 2 3 minus B 3 4 5 Okay.

[00:08:48]Next to no number A minus C A 1 2 3 1 2 numbers. Next number C minus Bus 3 4 5 Okay.

[00:09:44]Okay.

[00:09:46]Next number B minus A B 3 4 5 A 1 2 3 1 2 3 3 4 5 last C minus A 6US A 1 2 3 1 2 3 1 2 3 5 numbers 1 2 3 Next screen.

[00:10:59]Okay.

[00:11:08]B 57 C 9 A union B A set 1 2 3 4 1 2 3 4 Union B set 4 5 6 7 1 2 3 4 5 6 5 6 7 1 2 3 4 5 6 7 Next 1 2 3 4 1 2 3 4 1 2 3 4 5 6 7 1 2 3 4 5 6 Seven.

[00:12:37]LS number intersection Cal intersection B intersection 56.

[00:13:15]Okay.

[00:13:17]7.

[00:13:24]Okay.

[00:13:29]67.

[00:13:44]Okay.

[00:13:46]Question number three. Question number three. A union B union Cal A B Union C. A union B union CHS A B C 1 2 3 4 Union B union C 4 5 6 7 8 9 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 Okay, B union A 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 C 6 7 8 9 Okay.

[00:15:24]1 2 3 4 5 6 7 8 9 Okay. LS number question number four.

[00:15:52]A intersection B intersection C equal to A intersection B intersection C intersection A 1 2 3 4 intersection B intersection C A intersection B. Okay. Intersection four intersection 69 6 8 9 intersection LS RS Question number five.

[00:17:21]A union B intersection C equal to A union B intersection A union C. Okay.

[00:17:35]A union B intersection C A 1 2 3 4 Next intersection C 6 1 2 3 4 6 7 1 2 3 4 6 7 RS A B A 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7 Next intersection A 1 2 3 4 6 7 8 9 1 2 3 4 6 7 8 1 2 3 4 5 6 1 2 3 4 6 Okay. 6 7 8 9 8 9 1 2 3 4 6 7 1 2 3 4 6 7 LS Next.

[00:19:19]A intersection B union C equal to A intersection B union A intersection C or C number A intersection B union C A 1 2 3 4 intersection B Okay.

[00:19:51]1 2 3 4 5 6 7 8.

[00:19:59]Okay.

[00:20:07]A intersection B union A intersection C A Okay for Union A intersection C Next.

[00:20:41]Okay.

[00:20:50]Next. Question number seven.

[00:20:56]A minus B not equal to B minus A or C. A minus B not equal to B minus A. Okay.

[00:21:08]A minus B to A 1 2 3 4 minus B 4 5 6 7 Bus A B Cric 4 5 6 7 1 2 3 4 1 2 3 4 Okay.

[00:21:50]5 6 7 L= Okay. Next last number last number a minus b minus c not equal to a minus b minus c.

[00:22:14]Okay. LH L A minus B minus C A Bus 1 2 3 Cus 6 8 1 A - B minus C A 1 2 3 4 minus B 45 1 2 3 4 5 4 four. Same 1 2 question number Question number x²= X² + Xoous.

[00:24:27]Okay.

[00:24:39]number.

[00:24:42]Second number x Number x 2 less than x less than four.

[00:25:23]Answer number X belongs to Naral.

[00:25:55]0 1 2 3 4 0 1 2 3 four 1 2 3 question number five A minus B union A intersection B P A N M X Y E A intersection B A intersection B A B. Okay.

[00:27:26]D E question.

[00:27:32]First question. Second question.

[00:27:35]Second question. Second question.

[00:27:39]A union B intersection B union C intersection B union C A B D E P A already M X Y Okay B union C B Apx N M X Y X Right.

[00:28:44]to A B P N MX Y S T Z S T A B P A B P MX Y MXY D N M X Y second question answer Next question.

[00:29:38]A intersection B union B minus C A B next union B minus C X B P A N Y next A B M Y number question number A D E B A number A minus B intersection A intersection B A minus I B C D intersection A intersection Action.

[00:31:46]Okay.

[00:31:56]A minus B intersection B minus A.

[00:32:02]Okay. A minus B already B C D C D intersection B minus A I OS number B minus A intersection A intersection B A I O U I O U intersection Action Action A E Okay.

[00:33:00]Okay.

[00:33:08]Next. Next. Next class daily Live class.

[00:33:46]Okay.

[00:33:49]Exam whole year 100% class A intersection B union A union A minus B A intersection B A intersection B A set B set B set. Okay. Intersection.

[00:34:58]Okay. Next, A Bus A.

[00:35:16]Okay.

[00:35:27]A set.

[00:35:38]Okay.

[00:35:47]Okay.

[00:35:49]Second number section B union B minus A. Okay. Action.

[00:36:15]Okay.

[00:36:18]Bus A Second question.

[00:36:54]Next number A minus A intersection B. Okay. First A.

[00:37:18]Okay.

[00:37:28]A B.

[00:37:31]Okay.

[00:37:36]H number question number.

[00:38:08]Okay.

[00:38:17]Okay.

[00:38:26]Fore 1 2 3 4 B 3 4 5 6 Seven.

[00:38:58]Very fast. LS A union Bus A 5 6 7 Union 1 2 5 6 7 1 2 5 6 7 A intersection B A union B 1 2 3 4 5 6 7 1 2 3 4 5 6 7 A intersection B 5 1 2 5 6 7 Notice LS number question number I 1 2 3 4 I sorry I 1 2 3 4 16. Okay.

[00:41:13]IUS I20 I 1 2 3 4 20US I 1 2 3 Okay.

[00:41:41]Okay.

[00:41:51]IUSUS I20. Okay.

[00:41:55]I 16US I20. I 16 1 2 3.

[00:42:04]Okay.US I 20 I 1 2 3 One question answer exercise.

[00:43:12]Okay.

[00:43:14]Basic concept.

[00:43:29]Okay.

[00:43:37]Thank you. Bye everyone.