This exercise 1.6 of 9th class math, belongs to Punjab board & Federal Board of Pakistan.
TIMECODES
00:00 Suggestions
00:34 Q.1 Concept
01:16 Simultaneous Linear equations
03:15 Equation ?
04:52 Linear Equation ?
06:48 Solve mean Solution
07:54 Inversion method & Cramer’s rule?
09:03 Important Note
09:41 Q.1 I Inversion Method
29:48 Q.1 ii Inversion Method
41:40 Q.1 iii Inversion Method
49:53 Q.1 iv Inversion Method
58:09 Q.1 v Inversion Method
01:01:55 Q.1 vi Inversion Method
01:10:37 Q.1 vii Inversion Method
01:16:50 Q.1 viii Inversion Method

01:21:35 Q.2 Concept
01:23:18 Q.2 Rectangle ?
01:24:16 Q.2 Perimeter ?
01:26:39 Q.2 Formula of Perimeter ?
01:28:48 Q.2 Solution / Inversion Method
01:48:03 Q.3 Inversion Method

02:01:48 Q.4 Inversion Method
02:02:41 Q.4 Isosceles Triangle?
02:05:57 Q.4 Solution

02:18:47 Q.5 Concept
02:18:58 Q.5 Right Triangle
02:19:29 Q.5 Acute Angle
02:19:56 Q.5 Sum of all angles = 180
02:24:04 Q.5 Solution / Inversion Method

02:31:30 Q.6 Concept
02:35:16 Q.6 Solution / Inversion Method

02:47:57 CRAMER’S RULE Important note
02:4844 Q.1 I Cramer’s Rule
03:01:25 Q.1 ii Cramer’s Rule
03:09:16 Q.1 iii Cramer’s Rule
03:16:12 Q.1 iv Cramer’s Rule
03:21:53 Q.1 v Cramer’s Rule
03:23:47 Q.1 vi Cramer’s Rule
03:28:25 Q.1 vii Cramer’s Rule
03:33:06 Q.1 viii Cramer’s Rule

03:36:57 Q.2 Cramer’s Rule
03:44:11 Q.3 Cramer’s Rule
03:50:41 Q.4 Cramer’s Rule
03:56:35 Q.5 Cramer’s Rule
04:01:27 Q.6 Cramer’s Rule
04:05:48 My Msg.

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