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NCERT Class XI Mathematics - Limits and Derivatives - Solutions

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Question : 11
Total: 72
lim
x→1
ax2+bx+c
cx2+bx+a
 , a + b + c ≠ 0
Solution:  
We have,
lim
x→1
ax2+bx+c
cx2+bx+a
 =
a.(1)2+b.(1)+c
c.(1)2+b.(1)+a
 =
a+b+c
c+b+a
 = 1.
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