CBSE Class 12 Mathematics 2026 Main Paper 65(B) · Q11 Marksinjectivity_surjectivity
CBSE Class 12 Mathematics 2026 Main Paper 65(B) · Question 1 (Relations And Functions)
Classify f:ℝ→ℝ, f(x)=x³.
✅ Step-by-Step Solution
Final Answer: One-one and onto
- The cube is strictly increasing, and each real target y has the unique real preimage ∛y.
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