Friday

August 26, 2016
Number of results: 121,466

**Precalculus**

I'm interested in teaching myself Precalculus and would like to find a good book with lesson plans and assignments. Any ideas?
*January 8, 2010 by Sheryl*

**Precalculus Test**

I have a precalculus test coming up and I'm not really understanding how to do everything. Please help. 1. Find the angle betweem 0 and 2pi which is coterminal to the angle -(7pi)/5. Now convert the angle you just found to degrees.
*April 8, 2013 by marie darling*

**precalculus**

Precalculus-------Give an example of three functions f,g,h none of which is a constant function such that? fog=foh but g is not equal to h. I tried with many functions but not getting like f=x g=1+x then h=?or any other example so that we get fog=foh
*September 23, 2012 by Fatima*

**math- precalculus**

how do i solve these? 9^(-x)=1/3 2^(2x)+ 2^(x) -12 = 0 (3/5)^x = 7 ^ (1-x)
*December 1, 2008 by mia*

**math... precalculus**

how do i solve this equation? log3x+log3(x-24)=4
*November 15, 2009 by alexa*

**Math, precalculus**

Write an equation for the hyperbola with vertices (7,5),(-5,5); foci (11,5),(-9,5)
*March 2, 2014 by Praphul*

**Precalculus**

I have a precalculus test tomorrow and I've been studying nonstop for the past few days but I've been struggling because it has been 8 years since the last math class I have taken. My question is about half-angle formulas, My professor taught us that they are: Sin(Theta/2...
*December 2, 2015 by Tom*

**Math (PreCalculus)**

How do I prove the following identity? sec^2x-1 (division line)> -------- = (tanx)(secx) (sinx)
*February 3, 2015 by Charli*

**Please Help!!!!!!**

Decide whether the following problem can be solved using precalculus, or whether calculus is required. If the problem can be solved using precalculus, solve it. If the problem seems to require calculus, explain your reasoning and use a graphical or numerical approach to ...
*January 9, 2012 by Anonymous*

**math- precalculus**

Help please! I can't seem to get x as the answer to prove that they are inverses of each other! Show what f and g are inverse functions algebraically f(x)= x-1/x+5 g(x)= -5x+1/x-1
*November 4, 2011 by Sara*

**Precalculus Math**

If $2500 is invested at an interest rate of 2.5% per year, compouded daily, find the value of the inevestment after 2 years
*September 27, 2012 by Olive*

**Math (Precalculus)**

I have no idea how to do these problems: Given that U and V are in Quadrant II and sinU = 3/5 and secv = -13/3, find: A) cos 2U B) sin (v/2) c) cos(U+V)
*February 7, 2008 by Joe*

**PreCalculus**

h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 5 9 7 1 4 6 2 0
*December 1, 2009 by Joe *

**precalculus**

3.6 ln 29
*July 16, 2011 by Denise*

**Precalculus**

ln x -4 In 3 =ln (1/5 x)
*December 11, 2012 by Sarah*

**precalculus**

for f(x)= (3-5x)^1/2, find f(x+h)-f(x)/h
*August 1, 2010 by Ria*

**PRECALCULUS**

factor x^3 - 2x^2 + x - 2
*April 27, 2011 by YOSHINATOR*

**Precalculus**

Solve 5x^3 6x^2 4x 8 = 0
*October 18, 2011 by R*

**Precalculus**

Solve for a. a/a+5 - 2 = 3a/a+5
*August 29, 2013 by B*

**precalculus II**

Solve: (x-2)5^x = 5^(x+2)
*February 4, 2014 by GAGAN*

**precalculus II**

Solve: (x-2)5^x = 5^(x+2)
*February 4, 2014 by GAGAN*

**precalculus**

solve: 5 ^(x+2) - 5^(x+1) = 5
*February 15, 2014 by mann*

**Precalculus**

What is the conjugate of i+3?
*September 24, 2015 by Aziz*

**Precalculus**

For f(x)=2x^2-4x+3 find f(x+h)-f(x)
*September 24, 2015 by Aziz*

**Math precalculus**

Write an equation for the hyperbola with center(0,-5); asymptotes y=+_ (19 square root6x)-5 , conjugate axis length of 12 units (+ or -square root of 19 times x divided by 6 )-5
*March 2, 2014 by Praphul*

**math**

so i am in precalculus, we need to graph the fuction using derivatives, maxima, intercepts and concavity. I am having trouble factoring cubics: for example: x^4-4x^3+16x --> x(x^3-4x^2+16)Now what? That is without calculator, how do you find the roots?
*May 4, 2011 by kathy*

**Precalculus**

solve the equations for x a) e^2x - e^x - 30 = 0 b)1-3/n^x = 5
*July 5, 2010 by Abraham*

**precalculus**

solve for x: logx (6+4x-x2) = 2
*May 8, 2009 by Kathy*

**precalculus**

the vertex of y^2 - 8y + 24 = x is... (9,3) (24,0) (8,4) (4,8) or none of these
*December 6, 2009 by JB*

**Precalculus **

State the domain of f(x) = x / x^2+4x+1
*February 2, 2010 by jh*

**Precalculus**

if f(x)=int(2x) find f(1.2)
*February 22, 2010 by Arielt*

**Precalculus**

If c= 16 and B= 67 degrees, find a.
*August 17, 2010 by Danielle*

**precalculus**

If A= 29 degrees and a= 4.6, find c.
*August 17, 2010 by maria*

**precalculus**

what is 15x^3-22x^2+8x
*October 6, 2010 by ariyonia*

**Precalculus**

2sin^2x+3cosx=3
*December 8, 2010 by Megan*

**precalculus**

x^5-2x^4+x^2-7x+1 ----------------- x+1 do synthetic division
*December 14, 2010 by g*

**Precalculus**

cos2x=cos(x+x)=
*January 10, 2011 by Lisa*

**precalculus**

How many degrees are there in 2 radians?
*January 21, 2011 by ken*

**Precalculus**

Given f(x)=x^2-1 and g(x)=1/(x-1), the composition f(g(x)) is... a. [(1/(x-1))^2]-1 b. (1/(x-1))-1 c. 1/((x^2)-2) d. 1/(x^2)
*August 5, 2011 by Kathy*

**Precalculus**

Solve 5^(2-x) = 1/125 for x.
*January 28, 2012 by Jake*

**Precalculus**

find roots of w^(4)+2^(3)+3^(2)+4w-52=0
*February 20, 2012 by Sam*

**Precalculus**

Sin^2x-1=-cos^2x
*March 24, 2012 by Britney*

**precalculus**

121y^2-196=0
*February 25, 2013 by Shelia*

**PreCalculus**

cotx + tanx=
*May 13, 2013 by Jess*

**precalculus**

how do you eliminate the parameters for x=1-t^2 and y=1+t?
*April 22, 2015 by JK*

**Precalculus**

Find the domain of H(x)= (3x^2+x)/(x^2+4)
*September 24, 2015 by Joselito*

**Precalculus**

Is (x+6) a factor of f(x)=2x^3+11x^2-7x+6?
*September 24, 2015 by Aziz*

**precalculus**

2(sinx)^2-5cosx-4=0
*April 5, 2016 by Anonymous*

**Precalculus**

graph each equation Y=5 (let x= -3,-2,-1,0,1,2,3)
*August 26, 2016 by Naila*

**Math precalculus**

Let z and w be complex numbers such that |z| = |w| = 1 and zw does not equal -1. Prove that (z + w) / (zw + 1) is a real number. I have tried to rationalize the denominator and I got (z^2*w-z*w^2) / (zw)^2-1 but that got me nowhere. Can someone please help me!!!
*August 15, 2016 by Joe*

**precalculus**

put this in trigonometric form: -3-i
*May 26, 2008 by bill*

**precalculus**

tan(sec-1sqrt(2))
*July 30, 2008 by Bobby*

**Precalculus**

Would this be the answer for this problem 2x^3-x^2 > x x>1 or 0>x>-1/2
*December 6, 2008 by Melly*

**Precalculus**

K(x) = x^2(x^2 + 16), where K(x) = x^2. I got K(x^2) = x^8 + 16x^4. Is this right? Thanks :))
*September 1, 2009 by Emily*

**precalculus**

how do i find the x and y intercepts for y = 16 - 4x squared?
*October 4, 2009 by kaylee*

**precalculus**

which conic section is this the equation for? 3x^2 - 9x + 2y^2 = 15
*December 6, 2009 by JB*

**Precalculus**

f(x)=x-5 g(x)=1/x-1 find the range of the following f(g(x)) g(f(x))
*March 29, 2010 by Arielt*

**Precalculus**

please still stuck h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 2 3 2 6 8 8 0
*April 26, 2010 by Kate*

**precalculus/algebra**

simplify the expression: 6x(2x+1)^1/2+3x^2(2x+1)^-1/2
*June 13, 2010 by stefany*

**Precalculus**

find x-intercept -0.01x^2+0.7x+6.1
*November 11, 2010 by HaRI*

**precalculus**

x=36y-3y^2-64 what is the vertex of this equation?
*March 5, 2011 by anonymous*

**precalculus**

fourth roots of 1-root3i
*May 20, 2011 by joe*

**precalculus logs**

what is the domain of f(x)=-ln(-x) and the inverse
*November 11, 2011 by adly*

**precalculus**

Simplify the Factorial Expression. (3n+1)!*3!/(3n-2)!
*December 5, 2011 by Robert*

**PRECALCULUS**

solve: tantheta = sintheta
*January 23, 2012 by Davis*

**Precalculus**

How can i write this in log form 5^-2 = 0.04
*February 1, 2012 by jake*

**Precalculus**

cotx-cos^(3)xcscx
*October 22, 2012 by Sophia*

**Precalculus **

Write y^2 + 8x = 0 in polar form.
*November 9, 2012 by G*

**precalculus**

tan(x)-3cot(x)=0 solve.
*November 28, 2012 by kay*

**Precalculus **

Calculate solution set. x^2+4y^2=68 xy=8
*May 24, 2014 by Anonymous*

**Precalculus**

how to dimensionaly analys ML=MLcos(LT)'
*September 4, 2014 by Iren*

**precalculus**

hyperbola with vertices at (0,+/-2), and asymptotes y=+- 1/2x
*May 6, 2015 by robert*

**Precalculus- HELP!**

Which of the following series diverges? a) 5 + 10 + 15 + 20 +... b) 45 + 15 + 5 + 5/3 + ... c) 3/4 + 3/16 + 3/64 +.. d) 1/2 + 1/4 + 1/8 + 1/16 +... Thank you!
*January 10, 2016 by Ellie*

**Precalculus**

sketch the graph of each equation y=4x-x2
*February 7, 2016 by Jessica*

**Pre calculus**

Precalculus-------Give an example of three functions f,g,h none of which is a constant function such that? Precalculus-------Give an example of three functions f,g,h none of which is a constant function such that? foh=goh but f is not equal to g I tried with many functions but...
*September 23, 2012 by Fatima*

**Math- Precalculus**

Write the expression as the sine, cosine, tangent of an angle (in radians.) (tan(pi/5)-tan(pi/3))/(1+tan(pi/5)tan(pi/3))
*May 20, 2013 by Maddy*

**precalculus**

how do i solvethis equation (btw we are studyinglogarithms) 3^(x^3)=9^x 2^x=10 (4^x)-(2^x)=0
*December 1, 2008 by kayla*

**precalculus**

find the additive inverse of the number 6- pi and -7
*September 9, 2009 by timmy*

**precalculus**

2cosxcscsx-4cosx-cscx+2=0 solutions?
*January 10, 2010 by george *

**Precalculus**

How do you find cos(sin ^-1 1.414/2)?
*February 28, 2010 by Shanie*

**Precalculus Someone help please**

Evaluate the expression. [(3^-3)x(3^5)/3^-2]^-1/2
*January 22, 2011 by Sarah*

**Precalculus **

Simplify cotx sin2x cscx
*June 1, 2011 by nilii*

**College Precalculus**

What is the domain of (1)/square root(7x+17)?
*September 2, 2011 by Kendyl*

**precalculus**

find the component f and g so that fog =H H(x)=log3 e^x
*November 9, 2011 by tiona*

**precalculus**

find the increasing and decreasing intervals of 4x^3-7x+3
*December 11, 2011 by ck*

**Precalculus**

Is this correct? 1. Find the solution set for x^2/(x+3) < 9/(x+3). x^2/(x+3) < 9/(x+3) x^2 < 9 x^2 - 9 < 0 (x-3)(x+3)<0
*January 10, 2012 by Anon*

**PreCalculus**

x^2-2x+3y-8 Find the vertex and axis of symmetry.
*March 16, 2012 by Jessenia*

**Precalculus**

Write a logarithmic equation for 3^3/2= squareroot 27
*May 17, 2012 by Darlene*

**Precalculus**

What are the exact values for which tan t = -(sqrt3)
*May 23, 2012 by Emily*

**Precalculus**

Demonstrate that 32^n - 11 is a multiple of 15. write a conjecture for it.
*June 5, 2012 by Janel*

**precalculus**

write a formula for the following transformation of Q(t)= 5e^8t. y= 7Q(t-3)
*July 2, 2012 by Ariel *

**Precalculus**

Determine a recursive formula for the sequence: 2, 5, 10, 17,......
*September 8, 2012 by G*

**precalculus**

if f(x)=2x and g(x)= x+1 , what do you think someone means by (f+g)(x)? what about (f/g)(x)?
*September 9, 2012 by md *

**precalculus**

how do i graph a hyperbola from the following equation? y^2-x^2-4y+4x-1+0
*December 3, 2012 by alyse*

**PreCalculus**

Write the equation 5x 4y = 7 in polar form.
*February 21, 2013 by Bonqui'sha*

**Precalculus**

Please help me. Solve the system algebraically. 16)y=x^3+x^2 y=3x^2
*March 5, 2013 by Phoebe*

**PreCalculus**

Sin5x cos2x + cos5x sin2x=
*May 13, 2013 by Becky*

**Precalculus**

That is my question, i don't know what t equals when 224=16t^2
*September 13, 2013 by Jose*

**Precalculus**

Exact value cosπ/12
*November 24, 2013 by Anonymous*

**precalculus**

Find the range of the function given by f(x)=8x-2x^2.
*January 20, 2014 by gilly*