Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

RadEnBest ResponseYou've already chosen the best response.2
partial fraction 1/(y^21) = A/(y+1) + B/(y1)
 one year ago

RadEnBest ResponseYou've already chosen the best response.2
u have to find the values of A and B, first
 one year ago

completeidiotBest ResponseYou've already chosen the best response.0
or trig substitution
 one year ago

completeidiotBest ResponseYou've already chosen the best response.0
no sorry that would be a terrible idea
 one year ago

RadEnBest ResponseYou've already chosen the best response.2
1/(y^21) = A/(y+1) + B/(y1) 1/(y^21) = ( A(y1) + B(y+1) )/((y+1)(y1)) 1/(y^21) = ((A+B)y + BA ) / (y^21) A+B = 0 BA = 1 by using elimination or subtitution, we get B=1/2 and A = 1/2 see ur integral becomes int (1/2)/(y+1) dy + int(1/2)/(y1) dy
 one year ago

RadEnBest ResponseYou've already chosen the best response.2
for int (1/2)/(y+1) let u = y+1 du = dy it can be : int (1/2)/u du = 1/2 ln(u)
 one year ago

RadEnBest ResponseYou've already chosen the best response.2
subtitute back that u = y+1 now, we have int (1/2)/u du = 1/2 ln(u) = 1/2 ln(y+1)
 one year ago

RadEnBest ResponseYou've already chosen the best response.2
by same idea to solving int(1/2)/(y1) dy u = y1 du = du so, we have int(1/2)/u = 1/2 ln(u) = 1/2 ln(y1)
 one year ago

RadEnBest ResponseYou've already chosen the best response.2
finally, we have the answer : 1/2 ln(y+1) + 1/2 ln(y1) + c
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.