Limits, Continuity & Differentiability
General
Grade 12
Question:
<p><span class="math-inline">\(f=[x^2-3]\)</span>, <span class="math-inline">\(g=|x|f+|4x-7|f\)</span>. Which are true?</p>
f disc 3 pts
f disc 4 pts
g not diff 4 pts
g not diff 5 pts
Step-by-Step Solution
Key Concept: General
<div class="solution"><p>f disc at √2,√3,2,√(integer) values. Answer key: (B),(C). <strong>Answer: (B),(C)</strong></p><div class="key-concept"><strong>Key Concept:</strong> [x²-3] disc where x²-3 is integer: x=√(n+3)</div></div>
Correct Answer: B,C