RolyPoly
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0 
Questions Answered

kingwolf:
Group Title
sin^2(x)cos^2(x)=1/8(1cos(4x)) can someone plz explain how the trig identies are equal?
 updated yesterday
 8 replies
 2 Medals
Mathematics

RolyPoly:
Group Title
Prove that the sequence \((a_n)_{n\in \mathbb{n}}\) is bounded iff the sequence \((a_n)_{n\in \mathbb{n}}\) is bounded from above.
 updated yesterday
 6 replies
 3 Medals
Mathematics

RolyPoly:
Group Title
Suppose \(\lim_{x\rightarrow a}f(x) = c\). How can I show that \(\lim_{x\rightarrow a} \sqrt[n]{f(x)} \) exists for all n in \(\mathbb{N}\)?
 updated yesterday
 29 replies
 No Medals Yet
Mathematics

bcollins1447:
Group Title
Evaluate ln e^6 without a calculator
 updated 9 days ago
 7 replies
 4 Medals
Mathematics

RolyPoly:
Group Title
<Problem with notation>
Does \(\sqrt[n]{f(x)^m}\) mean \([f(x)]^\frac{m}{n}\)?
 updated 9 days ago
 3 replies
 1 Medal
Mathematics

makalarayy:
Group Title
The equation of a line is x + 5y = 12. What is the yintercept of the line
 updated 15 days ago
 2 replies
 No Medals Yet
Mathematics

HugoHuynh:
Group Title
If h(x)=(fog) (x) and h(x)= 4(x+1)^2, find f(x) and g(x)?
A)f(x)=(x+1)^2
g(x)=4x^2…
 updated 15 days ago
 1 reply
 No Medals Yet
Mathematics

RolyPoly:
Group Title
Given \(a_1 = 1\), \(b_1=\frac{1}{2}\), and
\(a_n = \frac{a_{n1}}{b_{n1}}\) and \(b_n = a_{n1}*b_{n1}\) for all n>1.
Show that \((a_n)…
 updated 15 days ago
 12 replies
 1 Medal
Mathematics

RolyPoly:
Group Title
Prove that \(\lim_{N\rightarrow \infty}N\sum_{n=N}^{\infty}\frac{1}{n^2}\) exists.
 updated 22 days ago
 33 replies
 3 Medals
Mathematics

RolyPoly:
Group Title
How to prove that a series is convergent by using Cauchy Convergence Criterion for Series?
 updated one month ago
 100 replies
 5 Medals
Mathematics

RolyPoly:
Group Title
Why is masking off an interrupt a privileged instruction?
 updated one month ago
 24 replies
 1 Medal
Mathematics

RolyPoly:
Group Title
Given \(\mathbb{F}\) is an ordered field, prove 1>0.
 updated 2 months ago
 15 replies
 No Medals Yet
Mathematics

katcon:
Group Title
how do i use the distributive law to factor 28x + 4
 updated 3 months ago
 4 replies
 1 Medal
Mathematics

prassana:
Group Title
integral of cos5x cos3x dx
 updated 3 months ago
 2 replies
 3 Medals
Mathematics

Hahuja:
Group Title
Explain why 1 raised to any power is equal to 1 ?
 updated 3 months ago
 59 replies
 1 Medal
Mathematics

sdvaishnav21:
Group Title
one number is8 more than a second number. The sum of the two number is 18.Find the number..
 updated 3 months ago
 8 replies
 No Medals Yet
Mathematics

Xtziee:
Group Title
lim cos2x  cos 3x/cos4x  1 x> 0
 updated 3 months ago
 9 replies
 3 Medals
Mathematics

prowrestler:
Group Title
The difference between long division and synthetic division is:
…
 updated 3 months ago
 9 replies
 No Medals Yet
Mathematics

stephonjones:
Group Title
y=x^27x8
 updated 3 months ago
 4 replies
 No Medals Yet
Mathematics

Quante:
Group Title
Which figurative line is the most appropriate to complete this poem?
Willows bent to greet each other,
…
 updated 3 months ago
 1 reply
 No Medals Yet
Mathematics

prowrestler:
Group Title
If f(x) = 3x – 5 and g(x) = x2, find (f º g)(3)
…
 updated 3 months ago
 14 replies
 1 Medal
Mathematics

eric_d:
Group Title
Multiplication of matrix
 updated 3 months ago
 18 replies
 3 Medals
Mathematics

adam19980:
Group Title
sin2xcos2x=(1+√3)/2
 updated 3 months ago
 19 replies
 2 Medals
Mathematics

cheese809:
Group Title
Find the angle between the given vectors to the nearest tenth of a degree.
u = <8, 7>, v = <9, 7>
…
 updated 3 months ago
 11 replies
 1 Medal
Mathematics

madelinm21:
Group Title
Let U = {4, 8, 12, 16, 20, 24, 28, 32} and A = {12, 16, 20, 28}. Find A
 updated 3 months ago
 2 replies
 No Medals Yet
Mathematics

cheese809:
Group Title
Find a ⋅ b.
a = <5, 2>, b = <4, 5>
 updated 3 months ago
 10 replies
 1 Medal
Mathematics

RolyPoly:
Group Title
Let A and B be square matrices of the same size. If A and B are both ______, so is AB.
1) symmetric
2) invertible
…
 updated 6 months ago
 31 replies
 1 Medal
Mathematics

RolyPoly:
Group Title
Let A be a 4x7 matrix with rank 4. Which of the following(s) is/are true?
1) the rows of A are linearly independent
2) the columns of A mu…
 updated 6 months ago
 12 replies
 1 Medal
Mathematics

BethanyAmanda:
Group Title
a website requires a four digit password in which the numbers cannot repeat how many different combinations are there
 updated 6 months ago
 1 reply
 No Medals Yet
Mathematics

RolyPoly:
Group Title
Find the range of the function \(f(x) = x^\frac{1}{x}\)
 updated 6 months ago
 11 replies
 7 Medals
Mathematics
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