Q. The $f (x) = {\frac{1 - 2 s i n x}{π - 4 x}, \frac{4 a + 1}{4}, x \neq = \frac{π}{4} x = \frac{π}{4}$ name of iso-octane is

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A

2, 2-dimethyl pentane

B

2, 3-dimethyl pentane

C

2, 3, 3-trimethyl pentane

D

2, 2, 4-trimethyl pentane

Solution:

$= 0. 9 \times 100 = 90$