How do I solve number 3b and c

  • Thread starter Thread starter mykayleighn
  • Start date Start date
AI Thread Summary
The discussion focuses on solving problems 3b and 3c, emphasizing that homework questions should be posted in designated sections and formatted using the homework template. For problem 3b, the key step is to expand the expression (t-2)^2 and combine it with other terms. The solution for problem 3c should utilize the answer obtained from problem 3a. Participants are reminded to type out their work instead of posting images. Proper formatting and adherence to guidelines are crucial for effective assistance.
mykayleighn
Messages
1
Reaction score
0
6a45805ed5044ae6f3ab4473d05854c4.jpg
 
Physics news on Phys.org
Your work looks find for problem 3b. What do you get for problem 3c?

Note that homework questions must be posted in one of the Homework sections, not in the technical math section. For such problems, you must also use the homework template. Please refrain from posting images of your work. Instead, type the problem and your work.
 
For 3b, I think the goal is to actually expand the expressions in the parenthesis, starting with (t-2)^2 = t^2 + ? t + ? ..., then combine with the remaining terms. For 3c, use the answer from 3a.
 

Thread 'Finding the number of ways to arrange identical balls in a circle (3 different colors)'

I tried to combine those 2 formulas but it didn't work. I tried using another case where there are 2 red balls and 2 blue balls only so when combining the formula I got ##\frac{(4-1)!}{2!2!}=\frac{3}{2}## which does not make sense. Is there any formula to calculate cyclic permutation of identical objects or I have to do it by listing all the possibilities? Thanks
View full post »

Thread 'Greatest possible value of a constant in polynomial'

Since ##px^9+q## is the factor, then ##x^9=\frac{-q}{p}## will be one of the roots. Let ##f(x)=27x^{18}+bx^9+70##, then: $$27\left(\frac{-q}{p}\right)^2+b\left(\frac{-q}{p}\right)+70=0$$ $$b=27 \frac{q}{p}+70 \frac{p}{q}$$ $$b=\frac{27q^2+70p^2}{pq}$$ From this expression, it looks like there is no greatest value of ##b## because increasing the value of ##p## and ##q## will also increase the value of ##b##. How to find the greatest value of ##b##? Thanks
View full post »

Similar threads

Find the values of a and b to get max/min of certain expression
Replies
21
Views
3K
Solve the problem involving the cubic function
Replies
12
Views
2K
Use Remainder theorem to find factors of ##(a-b)^3+(b-c)^3+(c-a)^3##
Replies
4
Views
2K
How do I factor out negative signs in equations?
Replies
5
Views
2K
Show that square root of 3 is an irrational number
Replies
1
Views
2K
Proving one equation, cyclic in variables ##a,b,c##, to another
Replies
4
Views
2K
Free variables for a matrix in REF
Replies
3
Views
3K
Solve these simultaneous equations that involve vectors
Replies
6
Views
2K
Trying to help someone simplify this: (2ab - 3b^2)/(3b - 4a)
Replies
2
Views
2K
Need some guidance - Fractions
Replies
5
Views
2K

Hot Threads

Recent Insights

Back
Top