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Algebra -4- Cubic Equations II Quantitative Aptitude II CAT 2021 II 16th September
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Question 1
The zeros of the cubic polynomial 2x3 – x2 – 2x + 1 are a, b and c respectively. Find a + b + c:
Question 2
If ; then find the value of x3 −6x2 +12x −18.
Question 3
The zeros of a cubic polynomial 2x3 – x2 – 2x + 1 are a, b and c respectively. Find (ab+bc+ca).
Question 4
The sum of the cubes of two numbers is 793. The sum of the numbers is 13. Then the difference of the two numbers is:
Question 5
If x = 2 - 21/3 + 22/3 then the value of x3 - 6x2 + 18x + 18 is-
Question 6
(y − z)3 + (z − x)3 + (x − y)3 is equal to:
Question 7
If p3 + 3p2 + 3p = 7, then the value of p2 + 2p is:
Question 8
Find the number of ordered pairs ( x2 , y) that satisfy the equation x3 + y3 + 36 xy = 1728, where x and y are positive whole numbers.
Question 9
If the equation x3 – 9x2 + 26x – p = 0 has 3 positive real roots, then
Question 10
m is the smallest positive integer such that for any integer n > m, the quantity n3 – 7n2 + 11n – 5 is positive. What is the value of m?
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