Number of results: 448
PreCal
Alright thank you. Can I also put them in my calculator? I wasn't sure but I did for the first one and got the same answer.
Sunday, April 3, 2011 at 1:59pm by PreCal
PreCal
Write each expression in problems 1 to 3 in the form a + bi. 1. (8-3i)+(-6+2i) 2. 4/(2-i) 3. (3-2i)^3 I do not understand at all where to start. I tired looking on google to find a way to solve but I didn't get any real help. So please help me!
Sunday, April 3, 2011 at 1:59pm by PreCal
PreCal
Thank you so much for your help!
Sunday, April 3, 2011 at 1:59pm by PreCal
calculus
If you are weak in math, what you need is a precalculus site (or algebra/trig/functions). I would not try to get ahead of the calculus course you will be taking. Try this one: http://jwbales.home.mindspring.com/precal/
Monday, July 28, 2008 at 9:36pm by drwls
PreCal
It's 3.1
Sunday, August 15, 2010 at 7:03pm by Hannah
precal
thanks :)
Friday, November 2, 2012 at 8:17am by Aly
PreCal
,l
Wednesday, June 8, 2011 at 4:07am by Anonymous
precal
thanks
Friday, March 23, 2012 at 8:10pm by olivia
PreCal
Thank YOU!!!
Saturday, September 3, 2011 at 1:30am by Jack
PreCal
yes
Tuesday, September 14, 2010 at 7:48pm by TutorCat
precal
Thank you!
Sunday, May 23, 2010 at 5:56pm by anonymous
Precal
Incomplete.
Tuesday, May 21, 2013 at 3:13am by Henry
Precal
wa
Tuesday, May 21, 2013 at 3:13am by gdfd
precal
36.8
Thursday, October 27, 2011 at 5:47pm by nriyah
precal- PLEASE HELP!
thank you.
Wednesday, March 28, 2012 at 9:50am by olivia
precal
But thanks alot!
Friday, March 23, 2012 at 8:08pm by Olivia
precal
33
Thursday, March 11, 2010 at 10:29pm by Anonymous
precal
thank u
Thursday, March 18, 2010 at 11:16pm by john 2020
precal
(-8)the exponent is -1/3
Wednesday, January 7, 2009 at 10:15pm by ash
PreCal
ok thanks I'll work on that
Tuesday, November 20, 2007 at 12:01pm by kelly
precal
well, that's what I did, using h for Δx.
Tuesday, November 6, 2012 at 3:12pm by Steve
precal
4/(x+h-3)^2 - 4/(x-3)^2 --------------------------- h -4(h+2(x-3)) ------------------------------ (x-3)^2(x+h-3)^2 Not sure where else you want to take it.
Tuesday, November 6, 2012 at 3:12pm by Steve
precal
(x^2+11)/(3-x) x=4i
Tuesday, August 21, 2012 at 1:03pm by katie
precal- PLEASE HELP!
thanks alot!!!!!!!!!!!!!!
Sunday, March 25, 2012 at 9:21pm by olivia
precal
cosx/sinxcotx=1
Friday, March 23, 2012 at 8:08pm by olivia
precal
cotxsinx=cosx
Friday, March 23, 2012 at 6:01pm by olivia
precal
4(3.75^1/64-1)=r
Monday, February 13, 2012 at 12:05am by dave
precal
1. no is said inx 2.yes
Saturday, February 4, 2012 at 11:35am by Loura
PreCal
How do you simplify i38?
Wednesday, September 7, 2011 at 3:39pm by Chandra
PreCal
Thanks, I am understanding now.
Monday, September 5, 2011 at 5:03pm by Tim
Precal
THAAAAAAANK YOOOOOOU.
Thursday, August 25, 2011 at 8:15am by Jason
precal
(root2-root2i)^6
Friday, May 20, 2011 at 4:16pm by joe
precal
are there solutions to x^3+27i=0 is so what are they?
Thursday, December 30, 2010 at 10:50am by sue
precal
What is your question?
Saturday, September 11, 2010 at 4:50pm by Ms. Sue
precal
(48)with the exponent of 1/2
Wednesday, January 7, 2009 at 9:51pm by ash
precal
I get 2 for y... does that sound right
Tuesday, April 15, 2008 at 11:24pm by Deb
precal log
4^(2x-5)=8^(x-3) Thanks
Wednesday, April 9, 2008 at 12:54am by Deb
Math Analysis (PreCal)
y = 2sin(4(x-2/3))
Thursday, March 7, 2013 at 11:12pm by Steve
Math precal
well, (a+b)^2 = a^2+2ab+b^2 that should help
Thursday, January 10, 2013 at 11:45pm by Steve
PreCal
x^2+y^2-4x-12y+31=0
Saturday, September 3, 2011 at 12:19am by Katie
precal
Find the Difference quotient: 4/(x-3)^2
Tuesday, November 6, 2012 at 3:12pm by katie
complex zeros
X^4 + 16 equals 0
Tuesday, April 3, 2012 at 1:36am by precal
precal
Thats ok, I think I kind of understand it.
Friday, March 23, 2012 at 8:10pm by olivia
precal
left and right are both 1
Friday, March 23, 2012 at 8:10pm by Damon
precal
are you aware that cos x + i sin x = e^(i x) ?
Friday, May 20, 2011 at 4:20pm by Damon
PreCal
i have to figure out what x is
Tuesday, September 14, 2010 at 7:48pm by Hayli
precal
^^ previous post. SORRY.
Saturday, September 11, 2010 at 4:50pm by Anonymous
precal
messed up the formula N = No(1 + r)^t
Tuesday, August 31, 2010 at 5:54pm by Anonymous
precal
Damon, yes. Military time.
Saturday, August 28, 2010 at 2:20am by Anonymous
precal
How do you solve: sin[arccos(-2/7)] ?
Sunday, May 23, 2010 at 5:56pm by anonymous
precal
simplify: csc²x secx
Monday, March 8, 2010 at 12:45am by john2
precal
yes i meant to have it with parantheses
Sunday, January 10, 2010 at 5:24pm by joe
precal
I will be happy to check your thinking on this.
Tuesday, February 24, 2009 at 6:48pm by bobpursley
Precal
How do you find the 6th root of -i?
Thursday, December 11, 2008 at 5:42pm by Sara
precal (log)
3^(log3(4x)) thank u
Tuesday, April 8, 2008 at 1:32am by Deb
precal
I apologize 4 the typo, that's how the work was given to me.
Friday, March 23, 2012 at 8:08pm by Olivia
precal
Find the components and so that fog =H . H(x)=log_3e^x
Wednesday, November 9, 2011 at 9:37pm by tina
PreCal
i38 = 38 @ 90 deg.
Wednesday, September 7, 2011 at 3:39pm by Henry
precal 2
solve the equation 4cos^2x-1=0
Sunday, July 24, 2011 at 9:01pm by denise
precal
Joe, we are not going to do your work for you. Sorry.
Friday, May 20, 2011 at 4:20pm by bobpursley
precal
identify the trigonometric form of -6+6i
Friday, May 20, 2011 at 4:18pm by joe
PreCal
That's fine if you don't have to show your work.
Sunday, April 3, 2011 at 1:59pm by Henry
precal
hint: cos(A+B) = cosAcosB - sinAsinB
Monday, December 27, 2010 at 4:20pm by Reiny
precal
If lim 1/5^n exists, what is its value? It's either 0.2 or 0
Saturday, September 4, 2010 at 8:06pm by Anonymous
precal
find all the roots of x^4-8x^2+5.
Wednesday, August 18, 2010 at 10:38pm by john2
precal
can u simplify the answer any more?????
Thursday, March 18, 2010 at 11:16pm by john 2020
precal
verify: tanx secx = -2tanx
Monday, March 8, 2010 at 8:29am by john2
precal
i honestly dont know what to do or how to start anyways
Tuesday, February 24, 2009 at 6:48pm by trista
Precal
how to express 3+4i in polar form
Wednesday, February 7, 2007 at 6:48pm by Icon44
precal
write as single log -4ln(x+1) + 9ln(x)
Tuesday, April 9, 2013 at 11:40pm by lakyn
PreCal
Simplify using identites tan(-x)cosx
Friday, October 12, 2012 at 12:17pm by Raeven
PreCal
Factor Completely: 10y^7 +26y^6 -12y^5
Wednesday, June 8, 2011 at 4:07am by LA
math: precal
How do I find the zeros of a polynomial function?
Sunday, March 20, 2011 at 4:54pm by leena
precal
the symbol before x^2 should be a square root
Monday, March 8, 2010 at 10:09pm by adam2
precal
solve cos(squared)x + sinx = 1 {0, 2pie)
Tuesday, January 12, 2010 at 11:48pm by timmy
precal
[0, 2pie] 2cosxcscx-4cosx-cscx+2=0 What are these solutions?
Sunday, January 10, 2010 at 9:09pm by johnny
precal
from {0,2pie} what are the solutions of tan x/4= square root of 3/3
Sunday, January 10, 2010 at 9:06pm by joe
precal
from {o, 2pie} what are the solutions of cos(squared)x- cos2x=0
Sunday, January 10, 2010 at 9:04pm by joe
urgent precal
What is cosx/ (secx-1) not in fractional form?
Sunday, January 10, 2010 at 9:03pm by joe
precal
rewrite cosx/secx-1 not in fractional form
Sunday, January 10, 2010 at 5:24pm by joe
college precal
sin(2x) - sqrt3*cosx=0
Friday, December 12, 2008 at 1:01am by Anonymous
Precal
Would the limit of lim x-->3 (x^3 -27)/(x^2 -9) be: 9/2?
Monday, December 8, 2008 at 1:59am by Jaslyn
precal
solve by subsituting 5x+4y=7 x-3y=9
Tuesday, April 15, 2008 at 11:24pm by Deb
precal
how do you find an exponent variable without logarithms? ex. 8.2=1.65(0.8)^n-1 thanks
Sunday, October 14, 2012 at 11:25pm by Derpy
precal
i've already attempted this question but something went wrong...
Sunday, March 25, 2012 at 10:45pm by olivia
precal
given tanx= (1/2) and cscx<0, find cos2x
Sunday, February 26, 2012 at 11:25pm by Logan
precal
tan3x=(3tanx-tan^3x)/(1-3tan^2x)
Monday, February 6, 2012 at 1:56pm by Mayna
PreCal
let the original point be reached by the vector (a,b,c) then (a,b,c) + (1,2,3) = (1,4,3) by mental arithmetic (a,b,c) = (0,2,0)
Wednesday, September 14, 2011 at 12:43am by Reiny
PreCal
Combine the whole numbers and the i's (7+-8) + (-7i+-2i) =-1+-9i
Wednesday, September 7, 2011 at 12:18am by ALISON
PreCal
Write the expression (7 – 7i) + (–8 – 2i) in the form a + bi
Wednesday, September 7, 2011 at 12:18am by Jake
PRECAL
answers please btw steps arent necessary
Wednesday, December 29, 2010 at 11:37pm by sue
precal
You're taking a test? Do you want us to help you cheat?? My, goodness, no!!
Monday, December 27, 2010 at 4:20pm by Ms. Sue
precal
You have not asked a question. What are the choices supposed to represent?
Saturday, September 11, 2010 at 4:50pm by drwls
precal
given cscx= -3 and tanx>0 find cosx
Sunday, January 10, 2010 at 9:07pm by joe
college precal
find all the values: sin2x- sqrt3cosx=0
Friday, December 12, 2008 at 1:01am by Shawn
precal
put x= 3y+9 into the first equation for x, then solve for y.
Tuesday, April 15, 2008 at 11:24pm by bobpursley
Algebra/ Precal
change k to -.035, I think you will get more meaningful results.
Tuesday, February 14, 2012 at 9:55pm by bobpursley
calculus and precal
find k such that f(x)=3k-2x+3kx^2-x^3 has a factor of (x-2).
Wednesday, September 7, 2011 at 7:42pm by Jishka
PreCal
Write the polar equation in rectangular form r=-12 sinè
Saturday, September 3, 2011 at 12:19am by Kathy
precal 2
find the area of the triangle B=72degree 30', a= 105, c=64
Sunday, July 31, 2011 at 5:14pm by raven
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