Let ff be a continuous function such that integral, from, 1, to, 6, of, f, of, x, d, x, equals, 2∫ 16 f(x)dx=2 and integral, from, 6, to, minus, 6, of, f, of, x, d, x, equals, 8, .∫ 6−6 f(x)dx=8. What is the value of integral, from, minus, 6, to, 1, of, f, of, x, d, x, question mark∫ −61 f(x)dx?
Question
Let ff be a continuous function such that integral, from, 1, to, 6, of, f, of, x, d, x, equals, 2∫ 16 f(x)dx=2 and integral, from, 6, to, minus, 6, of, f, of, x, d, x, equals, 8, .∫ 6−6 f(x)dx=8. What is the value of integral, from, minus, 6, to, 1, of, f, of, x, d, x, question mark∫ −61 f(x)dx?
Solution
To solve this problem, we can use the properties of integrals.
The property we will use is that the integral from a to b of f(x) dx is equal to the negative integral from b to a of f(x) dx.
So, the integral from 6 to -6 of f(x) dx is equal to the negative integral from -6 to 6 of f(x) dx.
We know that the integral from 6 to -6 of f(x) dx is 8, so the integral from -6 to 6 of f(x) dx is -8.
We also know that the integral from 1 to 6 of f(x) dx is 2.
So, the integral from -6 to 1 of f(x) dx is the integral from -6 to 6 of f(x) dx minus the integral from 1 to 6 of f(x) dx.
This is -8 - 2 = -10.
So, the integral from -6 to 1 of f(x) dx is -10.
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