We will use u-substitution, letting u = 4x. Thus, du = 4dx. Also, we will use the constant law of integration, namely int C*f(x)dx = C*int f(x) dx to rewrite the integral so that it contains du: int e^(4x)dx = 1/4 int 4*e^(4x)dx Now, we will rewrite in terms of u: int e^(4x)dx = 1/4 int e^(u)du We know that the integral of e^u du will simply be e^u.Free indefinite integral calculator - solve indefinite integrals with all the steps. Type in any integral to get the solution, steps and graph This website uses cookies to ensure you get the best experience.Free definite integral calculator - solve definite integrals with all the steps. Type in any integral to get the solution, free steps and graph This website uses cookies to ensure you get the best experience.Get an answer for '`int sin(ln(x)) dx` First make a substitution and then use integration by parts to evaluate the integral' and find homework help for other Math questions at eNotes`9x + c - 9int(du)/(2u) = 9x + c - 9/2int(du)/u` So, we will have: `9x + c - 9/2lnu + c` Replace now the u by (x^2 + 1), and combine c + c = 2c. `9x -9/2ln(x^2 + 1) + 2c` Since, c is any constant
Indefinite Integral Calculator - Symbolab
In this section we will compute some indefinite integrals. The integrals in this section will tend to be those that do not require a lot of manipulation of the function we are integrating in order to actually compute the integral. As we will see starting in the next section many integrals do require some manipulation of the function before we can actually do the integral.Answer to: Evaluate the integral. \\int x \\ln x dx By signing up, you'll get thousands of step-by-step solutions to your homework questions. You can...going to do in this video is try to evaluate the definite integral from zero to PI of X cosine of X DX like always pause this video and see if you can evaluate it yourself well when you immediately look at this it's not obvious how you just straight up take the antiderivative here and then evaluate that at PI and then subtract from that it evaluated at 0 so we're probably going to have to useEvaluate Integral of $\sin(\ln(x))dx$ Ask Question $$\int \sin(\ln(x))dx=\frac{x}{2}(\sin(\ln(x))-\cos(\ln(x)) + C$$ I want to point out that because of that "tricky" step, it's kind of weird to see where the constant of integration shows up... But eh, the point is it's gonna be there, even though we didn't really "integrate" the last
Definite Integral Calculator - Symbolab
Cos−1 (x) Dx Evaluate The Integral. From 1 To 5, W2 Ln (w) Dw First Make A Substitution And Then Use Integration By Parts To Evaluate The Integral. (Use C For The Constant Of Integration.) X Ln (3 + X) DxEvaluate the integral. (Use C for the constant of integration.)15ln(x)/(xsqrt(1+(ln(x))^2) dxEvaluate the integral. (Use C for the constant of integration.) (x2 + 8x) cos x dx Need Help? ReatTaik to a Tutor Talk to a TutorQuestion: Evaluate The Integral. (Use C For The Constant Of Integration.) (5x + 7 Sin(x))2 Dx Evaluate The Integral. (Use C For The Constant Of Integration.) 3x Ln(x) X2 − 36 Dx Evaluate The Integral.Solution for Use the Table of Integrals to evaluate the integral. (Use C for the constant of integration.) dx x2 V 4x2 + 81
integration through parts is simply the chain rule in opposite: d(uv) = u dv + v du So, you've gotten #1. ∫ ln √x dx So, let u = ln √x = 1/2 lnx dv = dx Then du = 1/(2x) dx and v = x ∫ ln √x dx = uv - ∫ v du = x ln √x - ∫ 1/2 dx = x ln √x - 1/2 x = 1/2 x (lnx - 1) + C
#2. You have a curved triangular area with vertices at (0,4), (1,4e), (1,4/e) so, the usage of shells of thickness dx, v = ∫[0,1] 2πrh dx the place r = x and h = 4e^x - 4e^-x v = ∫[0,1] 2πx(4e^x - 4e^-x) dx
you'll be able to take a look at your resolution the use of discs (washers) of thickness dy, but you have to cut up the area into two portions as a result of the left boundary changes where the curves intersect at (0,4). You even have to precise x as a serve as of y. v = ∫[4/e,4] π(R^2-r^2) dy + ∫[4,4e] π(R^2-r^2) dy the place R=1 and r adjustments from -ln(y/4) to ln(y/4) v = ∫[4/e,4] π(1-(-ln(y/4))^2) dy + ∫[4,4e] π(1-(ln(y/4))^2) dy however that is somewhat extra work ...
#3. the moderate worth of f(x) on [a,b] is (∫[a,b] f(x) dx)/(b-a)That is, the area divided by the width provides the average top. So, in this case, the reasonable is (∫2x sec^2(x) dx)/(π/4 - 0) Use integration by portions, with u = 2x and dv = sec^2(x) dx
#4. ∫7 ln∛x dx = 7/3 ∫ lnx dx See #1.
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oobleck
Feb 6, 2020It just passed off to me that I mentioned chain rule, when it's actually the product rule. Bu I'm positive you stuck that.
Looking forward, differentiation under the integral sign is the chain rule in reverse.
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oobleck
Feb 6, 2020
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