Questions Answered

fr3der1co:
Why the definition of limit is necessary to Calculus?
 updated one month ago
 13 replies
 1 Medal

rosy:
why set of irrational nos are not dense??? while we consider this def of dense set
a set A is said to be dense in R if there is a point of…
 updated 6 months ago
 25 replies
 No Medals Yet

user917:
How can I prove that this set is bounded above ?
E(x)= { (1+(x/n))^n } ?
 updated 7 months ago
 19 replies
 2 Medals

AwakeReality:
AwakeReality
Suppose the sum of three consecutive even integers is given. How can you find the three numbers?
…
 updated 7 months ago
 3 replies
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hanashin13:
is the limit of 3sqrt(x) 1 / sqrt(x) 1 as x approaches 1 equal to 3/2 ?
 updated 7 months ago
 45 replies
 1 Medal

bndbachhu:
without derivative find the maximum and minimum values of 3sinx+4cosx
 updated 7 months ago
 3 replies
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Stargazer4:
123
 updated 7 months ago
 5 replies
 2 Medals

stats90:
Let \[{X _{n} : n \ge1}\] be a sequence of positive independednt random variables with \[E(X _{n})=c \in(0,1)\] for each n. Let Yn=X1X2...Xn…
 updated 7 months ago
 4 replies
 1 Medal

elaandre30:
how many ways can you stack 77 books into equal piles?
 updated 7 months ago
 1 reply
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succubusismydogsname:
Prove A(AB)=B(BA)
 updated 7 months ago
 9 replies
 1 Medal

Xpod78:
What is a polyhedron whose faces are regular pentagons?
 updated 7 months ago
 1 reply
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ErinWeeks:
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notat…
 updated 7 months ago
 13 replies
 1 Medal

meganemma1995:
Which of the following is the conjugate of 10 − 3i?
10 + 3i
…
 updated 7 months ago
 2 replies
 2 Medals

DavidUsa:
What is a point mass?
 updated 7 months ago
 2 replies
 1 Medal

kdekle:
Give an example of group elements a and b with the property that a^1ba does not equal a.
 updated 7 months ago
 2 replies
 1 Medal

jasmineirven:
domain and range for g(x)=10^x
 updated 7 months ago
 3 replies
 1 Medal

tryder:
My math teacher told me to answer and explain the answer for: 0/0=
 updated 7 months ago
 12 replies
 1 Medal

TheDoctorRules:
What is the limit for x>infinity
(r+sinr) / (2r+75sinr)
 updated 7 months ago
 9 replies
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stupidinmath:
WRITE A TWOCOLUMN PROOF. .
Given:
l3  l4
…
 updated 7 months ago
 5 replies
 1 Medal

bless:
the equation y=ax^2+bx+c is a quadratic function for all real numbers a, b and c. True or False?
 updated 7 months ago
 1 reply
 1 Medal

AkashdeepDeb:
HELP NEEDED:
If X = {8^n  7n  1n ∈ N} and Y = {49(n1)n ∈ N},
then prove that X ⊆ Y.…
 updated 5 months ago
 24 replies
 1 Medal

svengali:
does the number 1 satisfy this: 1(modulo 4)
 updated 7 months ago
 3 replies
 No Medals Yet

revelationxd:
True or False:
All even functions are continuous everywhere.
…
 updated 7 months ago
 13 replies
 2 Medals

kdekle:
Suppose a and b are integers that divide the integer c. If a and b are relatively prime, show that ab divides c. Show, by example, that if a…
 updated 7 months ago
 20 replies
 4 Medals

orple8:
Please help!!
 updated 7 months ago
 37 replies
 1 Medal

orple8:
How many 20digit numbers are such that the sum of their digits is even?
 updated 7 months ago
 22 replies
 4 Medals

orple8:
Ok. Another question.
 updated 7 months ago
 32 replies
 2 Medals

orple8:
Okay. Here goes another one.
 updated 7 months ago
 6 replies
 No Medals Yet

orple8:
So here's the other problem I promised you.
 updated 7 months ago
 14 replies
 2 Medals

orple8:
yup. another question. help please?
 updated 7 months ago
 21 replies
 4 Medals
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