If alpha,beta are zeroes of the polynomial p(x)=3x2-2x-6find 1/alpha+1/beta
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Answered by
1
Answer:
ANS.. => (-1/3)
Step-by-step explanation:
HEY DEAR,
HERE IS YOUR ANSWER............
3X^2 - 2X - 6 = 0
ALPHA AND BETA ARE THE ZEROES OF THIS POLYNOMIAL..
AS WE KNOW ANY POLYNOMIAL IS OF THE FORM:
X^2 + (SUM OF ROOTS)X + (PRODUCT OF ROOTS)
HERE,
3X^2 -2X -6 =0
X^2 - (2/3)X - 2 =0
SO,
SUM OF ROOTS = 2/3
PRODUCT OF ROOTS = -2
NOW , LET ALPHA = A AND BETA = B
SO 1/A +1/B = (A+B)/AB
= 2/3(-2)
= (-1/3)
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HOPE IT HELPS YOU..
THANKS .
^_^
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