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No Plagiarism!th4eJAQC41I3HbkzrqLkposted on PENANA 恐懼感8964 copyright protection558PENANAbXpC1eKcNh 維尼
562Please respect copyright.PENANAKOpbPi74cY
8964 copyright protection558PENANACLxZD5NZDk 維尼
∫sin(√x+a)e√x√xdx8964 copyright protection558PENANAXNFcmH2iNq 維尼
Substitute u=√x ⟶ dudx=12√x (steps) ⟶ dx=2√xdu:8964 copyright protection558PENANA047VZATztF 維尼
=2∫eusin(u+a)du… or choose an alternative:562Please respect copyright.PENANA7h7O3ECLji
Substitute e√x8964 copyright protection558PENANAMeNG3dVryK 維尼
Now solving:8964 copyright protection558PENANAveyjQC4TN6 維尼
∫eusin(u+a)du8964 copyright protection558PENANA7qTOs6FUoy 維尼
We will integrate by parts twice in a row: ∫fg′=fg−∫f′g.8964 copyright protection558PENANAuPokKpg4i6 維尼
First time:8964 copyright protection558PENANAI0wcFKYDmJ 維尼
f=sin(u+a),g′=eu8964 copyright protection558PENANA3BKsC98zob 維尼
↓ steps↓ steps8964 copyright protection558PENANAHiehrCZJuh 維尼
f′=cos(u+a),g=eu:8964 copyright protection558PENANATegAHlnTCZ 維尼
=eusin(u+a)−∫eucos(u+a)du8964 copyright protection558PENANAlHPNR4Km5C 維尼
Second time:8964 copyright protection558PENANA8dwoTyZCd1 維尼
f=cos(u+a),g′=eu8964 copyright protection558PENANAVRLiHNF2lw 維尼
↓ steps↓ steps8964 copyright protection558PENANAu2B5vsTMfs 維尼
f′=−sin(u+a),g=eu:8964 copyright protection558PENANA3MGCNhVHqO 維尼
=eusin(u+a)−(eucos(u+a)−∫−eusin(u+a)du)8964 copyright protection558PENANAMiuGeeT4jH 維尼
Apply linearity:8964 copyright protection558PENANAZVIpB7C2wt 維尼
=eusin(u+a)−(eucos(u+a)+∫eusin(u+a)du)8964 copyright protection558PENANA6y1tnBUqsv 維尼
The integral ∫eusin(u+a)du appears again on the right side of the equation, we can solve for it:8964 copyright protection558PENANAFcUKHDFiXH 維尼
=eusin(u+a)−eucos(u+a)28964 copyright protection558PENANASekPE1AWXa 維尼
Plug in solved integrals:8964 copyright protection558PENANA1Uuvz5KaxL 維尼
2∫eusin(u+a)du=eusin(u+a)−eucos(u+a)8964 copyright protection558PENANAfXKcdLGoIj 維尼
Undo substitution u=√x:8964 copyright protection558PENANATpI85q0koh 維尼
=sin(√x+a)e√x−cos(√x+a)e√x8964 copyright protection558PENANARNNxpnIOY2 維尼
The problem is solved:8964 copyright protection558PENANAZHI0tbAX0U 維尼
∫sin(√x+a)e√x√xdx=sin(√x+a)e√x−cos(√x+a)e√x+C8964 copyright protection558PENANAByY1s1jQO9 維尼
Rewrite/simplify:8964 copyright protection558PENANAZHiemrgzDC 維尼
=(sin(√x+a)−cos(√x+a))e√x+C8964 copyright protection558PENANARA4wK0Fe2P 維尼
216.73.216.12
ns216.73.216.12da2