Limits, Continuity & Differentiability
General
Grade 12
Question:
<p>If limx→0
eax−cos(bx)−cxe−cx
2
1−cos 2x
= 17, find 5a2 + b2.</p>
Step-by-Step Solution
Key Concept: General
<p>Expansion leads to 5a2 + b2 = 4 \times 17 = 68.</p>
Correct Answer: (3)