A) 12
B) 32
C) 16
D) 15
Correct Answer: B
Solution :
[b]We have, |
\[f(4+x)=f(4-x)\] |
\[\therefore \]\[f\,(x)\]is symmetric about \[x=4.\] |
Sum of its solution |
\[2\left[ \left( \frac{{{x}_{i}}+{{x}_{2}}}{2} \right)+\left( \frac{{{x}_{3}}+{{x}_{4}}}{2} \right)+\left( \frac{{{x}_{5}}+{{x}_{6}}}{2} \right)\left( \frac{{{x}_{7}}+{{x}_{8}}}{2} \right) \right]\] |
\[=2\,[4+4+4+4]\] |
\[=2\times 16=32\] |
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