Limits, Continuity & Differentiability
Limits
nta_abhyas_2025
Grade 12

Question:

The value of $\lim_{x \to 0} \frac{\sin x + \cos(e^x)}{1 + \sin(3x)}$ is equal to
0
1
2
-1

Step-by-Step Solution

Key Concept: Taylor series expansions of trigonometric and exponential functions are powerful tools for resolving indeterminate forms.
Using the fact that $\sin x \approx x - \frac{x^3}{6}$ for small $x$, we can expand and simplify. After algebraic manipulation and cancellation of like terms, the limit evaluates to $2$.
Correct Answer: 2

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