MBA Exam

If x6 + 5x3 + 8 = 0, then which among the following is true?

1) x + 2/x = 1
2) x + 2/x = -1
3) x - 2/x = 1
4) x - 2/x = -1

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MBA Other Question

The sum of digits in this multiplication will be:N=202*20002*200000002*20000000000000002*20000000.......2(31 zeroes) The sum of digits in this multiplication will be:

1) 144
2) Cannot be determined
3) 112
4) 160
Find the lowest of the three numbers as described: If the cube of the first number exceeds their product by 2, the cube of the second number is smaller than their product by 3 , and the cube of the third number exceeds their product by 3.

1) 3^1/3
2) 9^1/3
3) 2
4) Any of these
5) None of these