# Math (precalculus)

132,183 results

**Precalculus**

I'm interested in teaching myself Precalculus and would like to find a good book with lesson plans and assignments. Any ideas?

**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.

**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

**math- precalculus**

how do i solve these? 9^(-x)=1/3 2^(2x)+ 2^(x) -12 = 0 (3/5)^x = 7 ^ (1-x)

**math... precalculus**

how do i solve this equation? log3x+log3(x-24)=4

**Math, precalculus**

Write an equation for the hyperbola with vertices (7,5),(-5,5); foci (11,5),(-9,5)

**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...

**Math (PreCalculus)**

How do I prove the following identity? sec^2x-1 (division line)> -------- = (tanx)(secx) (sinx)

**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 ...

**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

**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

**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 = -ã13/3, find: A) cos 2U B) sin (v/2) c) cos(U+V)

**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

**precalculus**

3.6 ln 29

**Precalculus**

ln x -4 In 3 =ln (1/5 x)

**Precalculus**

If f(x) = x^2+18 then what is (f o f)(x)?

**precalculus**

for f(x)= (3-5x)^1/2, find f(x+h)-f(x)/h

**PRECALCULUS**

factor x^3 - 2x^2 + x - 2

**Precalculus**

Solve 5x^3 – 6x^2 – 4x – 8 = 0

**Precalculus**

Solve for a. a/a+5 - 2 = 3a/a+5

**precalculus II**

Solve: (x-2)5^x = 5^(x+2)

**precalculus II**

Solve: (x-2)5^x = 5^(x+2)

**precalculus**

solve: 5 ^(x+2) - 5^(x+1) = 5

**Precalculus**

What is the conjugate of i+3?

**Precalculus**

For f(x)=2x^2-4x+3 find f(x+h)-f(x)

**precalculus**

how do you solve 2x + y = 8 4x + 2y = 16

**precalculus**

find Pk + 1 if Pk=2K-1/k!

**Precalculus**

Find (f o g)(7) and (g o f)(7). f(x)=3x-1; g(x)=x^2+3

**Precalculus**

Simplify (x-4)(x-4)(x+7i)(x-7i)

**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

**Precalculus**

solve the equations for x a) e^2x - e^x - 30 = 0 b)1-3/n^x = 5

**precalculus**

solve for x: logx (6+4x-x2) = 2

**precalculus**

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

**Precalculus**

State the domain of f(x) = x / x^2+4x+1

**Precalculus**

if f(x)=int(2x) find f(1.2)

**Precalculus**

If c= 16 and B= 67 degrees, find a.

**precalculus**

If A= 29 degrees and a= 4.6, find c.

**precalculus**

what is 15x^3-22x^2+8x

**Precalculus**

2sin^2x+3cosx=3

**precalculus**

x^5-2x^4+x^2-7x+1 ----------------- x+1 do synthetic division

**Precalculus**

cos2x=cos(x+x)=

**precalculus**

How many degrees are there in 2 radians?

**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)

**Precalculus**

Solve 5^(2-x) = 1/125 for x.

**Precalculus**

find roots of w^(4)+2^(3)+3^(2)+4w-52=0

**Precalculus**

Sin^2x-1=-cos^2x

**precalculus**

121y^2-196=0

**PreCalculus**

cotx + tanx=

**precalculus**

how do you eliminate the parameters for x=1-t^2 and y=1+t?

**Precalculus**

Find the domain of H(x)= (3x^2+x)/(x^2+4)

**Precalculus**

Is (x+6) a factor of f(x)=2x^3+11x^2-7x+6?

**precalculus**

2(sinx)^2-5cosx-4=0

**Precalculus**

graph each equation Y=5 (let x= -3,-2,-1,0,1,2,3)

**precalculus**

What does the equation y = a(x - h)2 + k, a ≠ 0 represent?

**precalculus**

how do you write x=(√t^2+2) in terms of pi?

**precalculus**

Find Pk + 1 for the given Pk. Pk = 1 + 6 + 11 + … + [5(k - 1) - 4] + (5k - 4)

**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?

**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!!!

**precalculus**

put this in trigonometric form: -3-i

**precalculus**

tan(sec-1sqrt(2))

**Precalculus**

Would this be the answer for this problem 2x^3-x^2 > x x>1 or 0>x>-1/2

**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 :))

**precalculus**

how do i find the x and y intercepts for y = 16 - 4x squared?

**precalculus**

which conic section is this the equation for? 3x^2 - 9x + 2y^2 = 15

**Precalculus**

f(x)=x-5 g(x)=1/x-1 find the range of the following f(g(x)) g(f(x))

**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

**precalculus/algebra**

simplify the expression: 6x(2x+1)^1/2+3x^2(2x+1)^-1/2

**Precalculus**

find x-intercept -0.01x^2+0.7x+6.1

**precalculus**

x=36y-3y^2-64 what is the vertex of this equation?

**precalculus**

fourth roots of 1-root3i

**precalculus logs**

what is the domain of f(x)=-ln(-x) and the inverse

**precalculus**

Simplify the Factorial Expression. (3n+1)!*3!/(3n-2)!

**PRECALCULUS**

solve: tantheta = sintheta

**Precalculus**

How can i write this in log form 5^-2 = 0.04

**Precalculus**

cotx-cos^(3)xcscx

**Precalculus**

Write y^2 + 8x = 0 in polar form.

**precalculus**

tan(x)-3cot(x)=0 solve.

**Precalculus**

Calculate solution set. x^2+4y^2=68 xy=8

**Precalculus**

how to dimensionaly analys ML=MLcos(LT)'

**precalculus**

hyperbola with vertices at (0,+/-2), and asymptotes y=+- 1/2x

**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!

**Precalculus**

sketch the graph of each equation y=4x-x2

**precalculus**

how do you convert to polar form?

**precalculus**

How do you convert <12,13> to polar form?

**precalculus**

solve 17-9x=18y 12y=11-6x

**precalculus**

how do you sketch the curve represented by x=(√t2+2) y=t/4?

**Precalculus**

What is the quadratic factor of x^4+4x^3-10x^2+8x-24?

**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...

**precalculus**

how do i solvethis equation (btw we are studyinglogarithms) 3^(x^3)=9^x 2^x=10 (4^x)-(2^x)=0

**precalculus**

find the additive inverse of the number 6- pi and -7

**precalculus**

2cosxcscsx-4cosx-cscx+2=0 solutions?

**Precalculus**

How do you find cos(sin ^-1 1.414/2)?

**Precalculus Someone help please**

Evaluate the expression. [(3^-3)x(3^5)/3^-2]^-1/2

**Precalculus**

Simplify cotx sin2x cscx

**College Precalculus**

What is the domain of (1)/square root(7x+17)?

**precalculus**

find the component f and g so that fog =H H(x)=log3 e^x

**precalculus**

find the increasing and decreasing intervals of 4x^3-7x+3

**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

**PreCalculus**

x^2-2x+3y-8 Find the vertex and axis of symmetry.

**Precalculus**

Write a logarithmic equation for 3^3/2= squareroot 27