MBA Exam

Find highest power of 7 which devides 81!

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MBA Other Question
The real values of ‘a’ for which the quadratic equation 2x2 – (a3 + 8a – 1)x + a2 – 4a = 0 possesses roots of opposite signs are given by

1) a > 5
2) 0 < a < 4
3) a > 0
4) a > 7
 solve5(x+5)+6(y-3)=-49(x-1)+4(y-2)=4pl. provide sol.

1) x=10,y=-9
2) x=9,y=-10
3) x=5,y=-6
4) x=6,y=-5