# 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)

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)?

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

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