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NCERT Class XI Mathematics - Limits and Derivatives - Solutions

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Question : 5
Total: 72
lim
x→−1
x10+x5+1
x−1
Solution:  
We have ,
lim
x→−1
x10+x5+1
x−1
 =
(−1)10+(−1)5+1
−1−1
 =
1−1+1
−2
 = −
1
2
.
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