7. If a and ß are the two zeroes of the quadratic polynomial 2x’ - 3x +7, evaluate 1/a + 1/ß
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2
Step-by-step explanation:
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Answered by
1
Answer:
20/21
Step-by-step explanation:
quadractic polynomial in the form of ax^2+bx+c=0.,given here a=2,b=-3,c=7
we know the formula alpha= -b/a and
beta=c/a...then we find out alpha=3/2 and
beta =7/2
then alpha + beta =10/2
alpha × beta=21/4
1/alpha +1/beta =beta +alpha/alphabeta
=10/2÷ 21/4
=20/21
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