x
No Plagiarism!dHzoJ2h9DGgNgiBttKb7posted on PENANA 恐懼感8964 copyright protection403PENANAB0WGsWSs7u 維尼
407Please respect copyright.PENANAiEWqotfcEE
8964 copyright protection403PENANABUtl3NxPYx 維尼
∫sin(√x+a)e√x√xdx8964 copyright protection403PENANAA8vDSotwZT 維尼
Substitute u=√x ⟶ dudx=12√x (steps) ⟶ dx=2√xdu:8964 copyright protection403PENANAS5PYTfyu9a 維尼
=2∫eusin(u+a)du… or choose an alternative:407Please respect copyright.PENANA1rtGXEc2Xb
Substitute e√x8964 copyright protection403PENANAYrzwdyfl8U 維尼
Now solving:8964 copyright protection403PENANA1GlTpVyIqF 維尼
∫eusin(u+a)du8964 copyright protection403PENANAsbRIcTiF75 維尼
We will integrate by parts twice in a row: ∫fg′=fg−∫f′g.8964 copyright protection403PENANA5GBlsbKDTD 維尼
First time:8964 copyright protection403PENANAupBKVIo6BY 維尼
f=sin(u+a),g′=eu8964 copyright protection403PENANA1ba9ZKSfvc 維尼
↓ steps↓ steps8964 copyright protection403PENANAS5nx1L8tB2 維尼
f′=cos(u+a),g=eu:8964 copyright protection403PENANAcpMTyj3aM0 維尼
=eusin(u+a)−∫eucos(u+a)du8964 copyright protection403PENANAdVaktpVO9N 維尼
Second time:8964 copyright protection403PENANAcE5yea7yXR 維尼
f=cos(u+a),g′=eu8964 copyright protection403PENANAFCjlMxXCm4 維尼
↓ steps↓ steps8964 copyright protection403PENANAHqHdp3K0Oh 維尼
f′=−sin(u+a),g=eu:8964 copyright protection403PENANA456wXVTGM7 維尼
=eusin(u+a)−(eucos(u+a)−∫−eusin(u+a)du)8964 copyright protection403PENANAPKDoNW6PPD 維尼
Apply linearity:8964 copyright protection403PENANAqRMbCpkYsc 維尼
=eusin(u+a)−(eucos(u+a)+∫eusin(u+a)du)8964 copyright protection403PENANAdr1af2jJeM 維尼
The integral ∫eusin(u+a)du appears again on the right side of the equation, we can solve for it:8964 copyright protection403PENANApb7fo4Ilzi 維尼
=eusin(u+a)−eucos(u+a)28964 copyright protection403PENANA6jlseMMkqT 維尼
Plug in solved integrals:8964 copyright protection403PENANAgbyW7q0nwy 維尼
2∫eusin(u+a)du=eusin(u+a)−eucos(u+a)8964 copyright protection403PENANAacuXQlx2LT 維尼
Undo substitution u=√x:8964 copyright protection403PENANAgpWHw3vDcw 維尼
=sin(√x+a)e√x−cos(√x+a)e√x8964 copyright protection403PENANAZNZtznsiTQ 維尼
The problem is solved:8964 copyright protection403PENANAUq82R9Silx 維尼
∫sin(√x+a)e√x√xdx=sin(√x+a)e√x−cos(√x+a)e√x+C8964 copyright protection403PENANAIldccP0bG1 維尼
Rewrite/simplify:8964 copyright protection403PENANAyQrxzDVa2W 維尼
=(sin(√x+a)−cos(√x+a))e√x+C8964 copyright protection403PENANAW7TRU5z5sw 維尼
15.158.61.20
ns 15.158.61.20da2