Q.38 Evaluate
limx→∞ x tan
1/x
- ∞
- 1
- 0
- −1
Evaluate the Limit:
limx→∞ x tan(1/x)
Limits involving trigonometric functions are very common in calculus.
In this problem, we evaluate the limit:
Step-by-Step Solution
As x approaches infinity:
1/x → 0
Using the standard trigonometric limit:
limθ→0 (tan θ / θ) = 1
Rewrite the given expression:
x tan(1/x) = tan(1/x) / (1/x)
Now applying the limit:
limx→∞ tan(1/x) / (1/x) = 1
Correct Answer
Option (B): 1
Final Conclusion
The limit
limx→∞ x tan(1/x)
evaluates to:
1


