The coordinate grid shows three points P, Q, and R:
1 answer:
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Consider the substitution,
so that the integral is equivalent to
Notice that
which means is odd, so
Perhaps more work than necessary, but it does make it easier to see that the original integrand exhibits some symmetry about .
Answer:
Step-by-step explanation:
x - 5 - 3x + 1 = -45
-2x - 4 = -45
-2x = -45 + 4
-2x = -41
x = 41 ÷ 2
x = 41/2