A community for students.
Here's the question you clicked on:
 0 viewing
Clarkmonsterman
 2 years ago
can someone explain how to get the solution to IF7 problem d?
Clarkmonsterman
 2 years ago
can someone explain how to get the solution to IF7 problem d?

This Question is Open

OBMD
 2 years ago
Best ResponseYou've already chosen the best response.0Here is how I did the problem. First change \[Q=(at)(1+bt ^{2})^{3}\] Then use the product rule to get \[a(1+bt ^{2})^{3}+at(3)(1+bt ^{2})^{4}(2bt)\] I then used the fact that \[a(1+bt ^{2})^{3}=\frac{ a }{(1+bt ^{2})^{3}}=\frac{a(1+bt ^{2})}{(1+bt ^{2})^{3}}=\frac{ a+abt ^{2} }{ (1+bt ^{2})^{3} }\] to get \[\frac{ a+abt ^{2} }{ (1+bt ^{2})^{4} }+\frac{ 6abt ^{2} }{ (1+bt ^{2})^{4} }\] which simplifies to \[\frac{ a5abt ^{2} }{ (1+bt ^{2})^{4} }=\frac{ a(15bt ^{2} }{ (1+bt ^{2})^{4} }\]

OBMD
 2 years ago
Best ResponseYou've already chosen the best response.0Two corrections on the third line of equations (darn cut and paste). It should look like this \[a(1+bt ^{2})^{3}=\frac{ a }{ (1+bt ^{2})^{3} }=\frac{ a(1+bt ^{2}) }{ (1+bt ^{2})^{4} }=\frac{ a+abt ^{2} }{ (1+bt ^{2})^{4} }\]
Ask your own question
Sign UpFind more explanations on OpenStudy
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.