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Subjects
Mathematics State Board
Class 9
Algebra
Algebraic identities
17.
Two mark exercise problems VI
Exercise condition:
4
m.
1
. Find \(x^3 - y^3\), if \(x - y = 5\) and \(xy = 14\).
Answer
:
\(x^3 - y^3 =\)
2
. If \(a + \frac{1}{a} = 6\), then find the value of \(a^3 + \frac{1}{a^3}\).
Answer
:
\(a^3 + \frac{1}{a^3} =\)
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