What is E 2x integral?????
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Answers
Answer:
Well , there are a couple of ways , how about this:
Let’s try to solve it using our intuition , we are looking for a function that has a derivative equal to e2xe2x.Well , we know that the derivative of exex gives exex but we are missing the 2 in the exponent .So we try e2xe2x , but it’s derivative is 2∗e2x2∗e2x , no worries we just divide by 2 , so the 2s cancel .So the answer is 12e2x.12e2x.
We can also try a more straight-forward way , using substitution.
We want to solve: ∫e2xdx∫e2xdx ,we will substitute 2x with y,
y=2x,∫eydx,y=2x,∫eydx, but now our variable and our differential are different , so differentiating y=2xy=2x we get , dy=2dxdy=2dx so , dx=dy2,dx=dy2,substituting we have , ∫12eydy∫12eydy, the 1212 can go outside the integral as it is a constant , so finally,
Step-by-step explanation:
No Useless Answer @Chudail G.
Step-by-step explanation:
It is
1
2
e
2
x
.
You can certainly use the technique of integration by substitution (reversing the chain rule) to find this, you can also reason as follows:
The antiderivative of
e
2
x
is a function whose derivative is
e
2
x
.
But we know some things about derivatives at this point of the course. Among other things, we know that the derivative of
e
to a power is
e
to the power times the derivative of the power.
So we know that the drivative of
e
2
x
is
e
2
x
⋅
2
. That's twice a big as what we want.
We also know that constant factors just hang out in front when we take derivatives, so if we stick a
1
2
out front, it will be there after we differentiate and we can cancel the two.
f
(
x
)
=
1
2
e
2
x
has
f
'
(
x
)
=
e
2
x
so it is an antiderivative. The general antiderivative then is
1
2
e
2
x
+
C
is the answer correct ?