. The cost of petrol rises by 2 cents a liter. last week a man bought 20 liters at the old price. This week he bought 10 liters
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From the given f(x) and g(x), the value of (g-f)(2)=1
Given :
The functions are
Lets evaluate (g-f)(2)
To find out g(2), replace 2 for x in g(x) and then replace 2 for x in f(x)
Now we find g(2)-f(2)
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