If m and n are the zeroes of the polynomial of 3x² + 11x-4 find the value of m/n + n/m
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Answered by
66
hey friend
here is your answer
3x² + 11x - 4 = 0
sum of the zeroes=α + β
=-b/a
=-11/3
product of the zeroes = αβ
=c/ a
=-4/3
m/n + n/m = m² +n ²/ mn
= (m+n)² - 2mn /-4/3
=(- 11/3)² - 2 x -4/3 / -4/3
=121/9 + 8/3 / -4/3
=121 +24 /9 /-4/3
=145 / 9 /-4/3
=145 / 9 x -3 /4
=-145 /12
hope it helps
here is your answer
3x² + 11x - 4 = 0
sum of the zeroes=α + β
=-b/a
=-11/3
product of the zeroes = αβ
=c/ a
=-4/3
m/n + n/m = m² +n ²/ mn
= (m+n)² - 2mn /-4/3
=(- 11/3)² - 2 x -4/3 / -4/3
=121/9 + 8/3 / -4/3
=121 +24 /9 /-4/3
=145 / 9 /-4/3
=145 / 9 x -3 /4
=-145 /12
hope it helps
ArtemisW:
How ?
Answered by
9
-145/12 is the correct answer
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