Math miscellaneousHard
Question
If one root of the equation ax2 + bx + c = 0 is square of the other, then the value of b3 + ac2 + a2c is :
Options
A.-3abc
B.2abc
C.3abc
D.-2abc
Solution
Let ′α′ be the one root so
α2 + α = -
& α3 = 
Eliminating : we get
b3 + ac2 + a2c = 3abc
α2 + α = -
& α3 = Eliminating : we get
b3 + ac2 + a2c = 3abc
Create a free account to view solution
View Solution FreeMore Math miscellaneous Questions
Let A = . If |A2| = 25, then |α| equals...If = 4, = 2 and angle between and is then is equal to :-...Variance of the distribution 3 + α , 5 + α, 7 + α, ......, 21 + α will be...If a, b, c are in A.P., b, c, d are in G.P. & c, d, e are in H.P., then -...The integral equals...