# math... precalculus

138,582 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)

### math-precalculus

Eliminate the parameter t to find a Cartesian equation in the form x=f(y) x(t)=4t^2 y(t)=4+2t

### 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...

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)

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

### math-precalculus

tan^3(θ)=3tan(θ) solve for all solutions.. please provide steps so I can follow

### 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

help me please.. and please provide steps so I can follow. sec(2ϴ)=3... solve for all solutions on [0,2π]

### 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

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)

### PreCalculus

Let f(x) = x^2 +3x - 1 and g(x) = x^3 +4x^2 +1. Find (f-g)(x) a. (f-g)(x)=-x^3 - 3x^2 +3x b. (f-g)(x)=x^3 - 3x^2 +3x - 2 c. (f-g)(x)=--x^3 - 3x^2 +3x - 2 d. (f-g)(x)=-x^3 - 7x^2 +3x - 2

### 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

2sin^2x+3cosx=3

### precalculus

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

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

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

121y^2-196=0

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?

### Precalculus

Find center on y=1/3x+6, tangent to y=x+20(11;9)

### Precalculus

How many radians are in a straight angle?

### 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)?