MathematicsBinary operationsWAEC
If a ⊕ b = 2a + b², evaluate 3 ⊕ 2.
Show answer
Answer: B. 10
3 ⊕ 2 = 2(3) + 2² = 6 + 4 = 10.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.
Mathematics · Binary operations
Discussion
Ask about a step, share a shortcut, or explain it your way. Be kind; no links.
No comments yet. Be the first to explain it.
More Binary operations questions
- A binary operation * is defined on real numbers by a * b = a + b − ab. Evaluate 3 * 4.
- The operation ⊕ is defined by a ⊕ b = a² + b². Find 2 ⊕ (1 ⊕ 1).
- If x Δ y = x² − 2y, evaluate (3 Δ 1) Δ 2.
- The operation ⊗ gives the remainder when a + b is divided by 4. Find 3 ⊗ 3.
- If m ∘ n = m² − n², evaluate (3 ∘ 2) ∘ 4.