+9479 I'm trying to understand this example in my book but I don't know how they got from one step to the next.
From here:
\(= \int_{-10}^{10} \sqrt{1+\frac{1}{4}(e^{x/5}-2+e^{-x/5})}dx\)
To here:
\(= \int_{-10}^{10} \sqrt{\frac{1}{4}(e^{x/5}+2+e^{-x/5})}dx\)
It doesn't give any explanation it just jumps from the first one to the second and I'm just supposed to know how that happened.
+37146 They moved the '1' into the parentheses it will then become '4' due to the 1/4 in front of the parentheses...then they combined the '4' and the -2 (that was already in there) to get +2
+37146 They moved the '1' into the parentheses it will then become '4' due to the 1/4 in front of the parentheses...then they combined the '4' and the -2 (that was already in there) to get +2
