A root of 0 x-a x-b x+a 0 x-c = 0, then x is x+b x+c 0 1) a 2) b 3) c 4) 0Ħ6 put x=0 then determinent=0 0 0 = a-b = 0 abc-abc = 0 h 4Ħ7 34. If = logx logy logz log2x log2y log2z log3x log3y log3z 1) 0 2) log (xyz) 3) log (6xyz) 4)6 log (xyz)Ħ0 = log log => 1 2 log 2 3 log 2+ log log 3+ = 0 1Ħ1 1. The Value of 1 log x y log x z log y x 1 log y z log z x log z y 1 1) 1 2) xyz 3) log xyz 4) 0ĥ7 29. a i > 0, i 1 loga m loga m+1 loga m+2 Then loga m+3 loga m+4 loga m+5 loga m+6 loga m+7 loga m+8 1) 2 2) 1 3) 0 4) -2ĥ4 a,b,c are in GP. If the three linear equations x+4ay+az=0, x+3by+bz=0 and x+2cy+cz=0 have a non-trivial solutions, then a,b,c are in 1) A.P. In a ABC, 1 Sin A Sin 2 A 1 SinB Sin 2 B = 0 1 SinC Sin 2 C 1) Right angled 2)Right angled isosceles 3) Isosceles 4) Equilateralġ5 8. The sum of 2-3 and its multiplicative inverse is, ) 2) 3) 4)ĩ 5. If A= then adj A = 1)9 2) 1/9 3) 81 4)Ĥ A = 9 If A is square matrix of order n, then adja = 1 adja = 3 1 = 2 = 9 2 =81 3ĥ 3.
If A and B are square matrices of order 3 such that A = -1, B =3, then 3AB = 1) -9 2) -27 3) -81 4) 81Ģ We know that KA = A If A is n th Order 3AB =3 3 A.
0 kommentar(er)
