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Grade: 12th pass 

                        
Please solve the following questions of determinants from ...Q. Nos. 2, 4, 6, 7, 8
3 years ago

Answers : (1)

SHEK IMRAN
13 Points 
							
SOLUTION  FOR  8  QUESTION
 
CONSIDER  DET (FIRST )  =   DET  (SECOND )   =0
 
x(18-x2)-3(9-6x)+6(3x-36)  =   2(7x-4)-x(x2-14)+7(2x-49)  =0
54x-243 = 42x-351  =0
12x = -108
THEREFORE     X=-9
3 years ago
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