WB Police PC · Elementary Mathematics
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Mathematical Identities
Algebraic identities and applications.
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Take a full mock →Q1 · Mathematical Identities · EASY
If x + 1/x = 5, then find the value of x^2 + 1/x^2.
Q2 · Mathematical Identities · EASY
Find the value of (107)^2 - (93)^2 using an algebraic identity.
Q3 · Mathematical Identities · MEDIUM
If a + b = 8 and ab = 12, then find the value of a^3 + b^3.
Q4 · Mathematical Identities · HARD
If x - y = 3 and x^3 - y^3 = 117, then find the value of xy.
Q5 · Mathematical Identities · EASY
If a + b = 12 and ab = 35, then find the value of a² + b².