Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
-1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
0
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
none of these
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A 1 limx→∞x3/2(√x3+1−√x3−1) =limx→∞x3/2(√x3+1−√x3−1)×(√x3+1+√x3−1)(√x3+1+√x3−1) =limx→∞x3/2(x3+1)−(x3−1)(√x3+1+√x3−1) =limx→∞x3/22√x3+1+√x3−1 =limx→∞2√1+1/x3+√1−1/x3=22=1