Let a⃗, b⃗⃗ be two distinct vectors that are not parallel. The vector c⃗ = a⃗ × b⃗⃗ is
(A) zero. (B) orthogonal to a⃗ alone.
(C) orthogonal to a⃗ + b⃗⃗. (D) orthogonal to b⃗⃗ alone.
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2018 Q.1)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Verbal & Numerical Aptitude** under *General Aptitude* (1 Mark, NAT).
**2. Analytical Calculation**:
- Substituting aerodynamic parameters into governing Verbal & Numerical Aptitude equation.
**3. Final Answer**:
Acceptable official numerical value is **0.0**.
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