REVISION - XII
DETERMINANT 1) If two rows or two columns of a determinant are identical then the value of the determinant is a) 0 b) 2 c) -1 d) 1 2) If D= 0 a b -a 0 c -b -c 0 then D is a) 0 b) 1 c) a d) b 3) a+b a+2b a+3b a+2b a+3b a+4b= 0 a+4b a+5b a+6b 4 ) 1+ a 1 1 1 1+ b 1 1 1 1+ c = abc(1/a + 1/b + 1/c) 5) loga p 1 logb q 1 = 0 (a,b,c> 0) logc r ...
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