Same chapter3 marksDifficulty: Medium
Differentiate y = (2x + 1)/(x − 3) with respect to x.
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3 marksDifficulty: Medium
Evaluate the limit of (1 − cos x)/x2 as x approaches 0.
Original Khojo Papers practice question — not from a past board paper.
Answer
1/2
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Using 1 − cos x = 2sin2(x/2), the expression becomes 2sin2(x/2)/x2 = (1/2)[sin(x/2)/(x/2)]2, which tends to 1/2.
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