Questions Answered

MarieElise:
Group Title
prove that sin(a)+sin(b) = 2sin((a+b)/2)*cos((ab)/2)
 updated 10 months ago
 2 replies
 1 Medal

kewlgeek555:
Group Title
Can anyone be my tutor? I NEED someone good with explaining and solving recursive and explicit formulas. Please comment!
 updated 11 months ago
 26 replies
 3 Medals

Meepi:
Group Title
Let \(k\) be a positive integer with \(k \leq S_n\). The symmetric group \(S_n\) acts on the set B consisting of all kelement subsets of …
 updated one year ago
 31 replies
 2 Medals

wio:
Group Title
How many ways can the letters FJGSTFFYJ be arranged into 9 letter words?
 updated one year ago
 29 replies
 5 Medals

yuying:
Group Title
Hey can u guys help me with this question?Am totally stuck with it and will be really grateful if u can help! Qn attached at comment!:)
 updated one year ago
 16 replies
 3 Medals

bmelyk:
Group Title
Determine whether the series converges or diverges.
 updated one year ago
 15 replies
 No Medals Yet

bbkzr31:
Group Title
Need help writing a truth table.
 updated one year ago
 17 replies
 2 Medals

Meepi:
Group Title
Let \(G=\left{z\in\mathbb{C}z^n=1\text{ for some }n\in\mathbb{Z}^+\right}\). Prove that for any fixed integer \(k > 1\) the map from G to i…
 updated one year ago
 7 replies
 1 Medal

Panda223RulerZ:
Group Title
Is this equivalent to 3?
 updated one year ago
 11 replies
 3 Medals

bmelyk:
Group Title
For the series, determine if its convergent or divergent. if its convergent, find its limit.
 updated one year ago
 6 replies
 2 Medals

BriannaGeorge1:
Group Title
What is this function written in intercept form?
y=x^2x+6
…
 updated one year ago
 6 replies
 No Medals Yet

wednesday09876:
Group Title
Prove
2sinx/sin(2x)+tanx/sinx=2secx
 updated one year ago
 2 replies
 No Medals Yet

Parinati:
Group Title
∬_0^(√x)▒e^(y/√x) = ?
 updated one year ago
 2 replies
 No Medals Yet

Gremble:
Group Title
Integrating ky(1y), where k is an unknown constant and the integral = to 1 between infinity and negative infinity
 updated one year ago
 14 replies
 1 Medal

vanadr5:
Group Title
Why is the f(x)= 4^(x) f'(x)= 4^(x)ln4. I understand the rule b^x = b^xlnb, just confused where the  attached to the 4 came from
 updated one year ago
 1 reply
 1 Medal

Jonask:
Group Title
prove one of this identities
 updated one year ago
 9 replies
 1 Medal

iplayffxiv:
Group Title
Find the limit, if it exists.
lim h > 0, ((x+h)^3x^3))/h
 updated one year ago
 14 replies
 1 Medal

Meepi:
Group Title
Prove the Well ordering property of Z by induction and prove the minimal element is unique
It seems so obvious lol but I don't really know …
 updated one year ago
 10 replies
 2 Medals

msingh:
Group Title
plseeeee solve this
 updated one year ago
 15 replies
 2 Medals

brazellnicole25:
Group Title
Can someone help me? I need to Evaluate. Assume that u>0 when In u appears. I'm having trouble with this for some reason.
 updated one year ago
 8 replies
 No Medals Yet

DelilahJ.Rose:
Group Title
Stuck! Help Me! Solve the following system using the substitution method.
16x + 3y = 0
…
 updated one year ago
 2 replies
 1 Medal

malikjordan:
Group Title
Factor completely.
x3 + 6x2  4x  24
…
 updated one year ago
 2 replies
 No Medals Yet

Christos:
Group Title
what are the coefficients in 7x/(12x18) ?
 updated one year ago
 17 replies
 2 Medals

jd235:
Group Title
Coach Johnson is 10 years older than Tim. When Tim started football 3 years ago, Coach Johnson was twice his age. How old is Tim now?
 updated one year ago
 4 replies
 1 Medal

mndwp_:
Group Title
2. Use the Law of Syllogism to draw a conclusion from the two given statements.
If you exercise regularly, then you have a healthy body.
…
 updated one year ago
 4 replies
 2 Medals

accio.firebolt:
Group Title
It is given that f(x) = 1/x^3 − x^3, for x > 0. Show that f is a decreasing function.
 updated one year ago
 21 replies
 1 Medal

amberjordan2006:
Group Title
x^25x+4
 updated one year ago
 1 reply
 No Medals Yet

amberjordan2006:
Group Title
x^216
 updated one year ago
 8 replies
 1 Medal

onegirl:
Group Title
Use Theorem 2.2 to write the expression as a single integral.
 updated one year ago
 17 replies
 1 Medal

msm104:
Group Title
What values for q (0 < q < 2p) satisfy the equation?
2(square root 2) sin q + 2 = 0.
 updated one year ago
 8 replies
 No Medals Yet
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