I just cant figure it out!
Its the square root of 2x
u=1+(2x)^1/2
du=(2x)^-1/2 dx
dx=du(2x)^1/2
du(u-1)
∫1/(du(u)^1/2)
Do all the work and you will get: 1+(2x)^1/2 - ln |1+(2x)^1/2| + c
this is u-substitution, if you really mean â2 * x in the denominator.
Let u = 1 + â2•x
then du = â2 dx
the integral then becomes
1/â2 * â«1/u du
which you can surely integrate.
ask your teacher in the morning , and next time try to stay awake in class
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Verified answer
u=1+(2x)^1/2
du=(2x)^-1/2 dx
dx=du(2x)^1/2
du(u-1)
∫1/(du(u)^1/2)
Do all the work and you will get: 1+(2x)^1/2 - ln |1+(2x)^1/2| + c
this is u-substitution, if you really mean â2 * x in the denominator.
Let u = 1 + â2•x
then du = â2 dx
the integral then becomes
1/â2 * â«1/u du
which you can surely integrate.
ask your teacher in the morning , and next time try to stay awake in class