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GATE Mechanical Engineering · Mathematical Reasoning / Symbol Substitution · 2021-2024

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Rosen — Discrete Mathematics and Its Applications

Discrete structures, counting, relations, graph theory

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2024 Q4

The real variables x, y, z, and the real constants p, q, r satisfy $\frac{x}{pq - r^2} = \frac{y}{qr - p^2} = \frac{z}{rp - q^2}$ Given that the denominators are non-zero, the valu...

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2021 Q4

If ⊕ ÷ ⊙ = 2; ⊙ ÷ Δ = 3; ⊙ + Δ = 5; Δ × ⊗ = 10, Then, the value of (⊗ − ⊕)², is:

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