2,218 Answered Questions for the topic Pre Calculus
08/18/17
True or False: For a one-to-one function, y= f(x), then x = f^-1(y)
How do you get the solution?
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Pre Calculus
07/21/17
Cos theta [cos theta- cos (3 theta)]= sin theta [sin theta+ sin (3 theta)]
establish the identity for the left side.
Is it this process?
-cos theta [2 cos (2 theta) sin (-theta)
2 cos theta x sin theta x cos(2 theta)
sin theta [2 cos (- theta) sin theta]
Sin...
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07/19/17
Find just one zero
f(x)=x3-10x2+8x+3
Find just one of the zeros of F
Where does f have a relative maximum
what is the relative maximum value
07/19/17
Given the polynomial p(x) = 2x^4+x^3+10x^2-31x-18
Given the polynomial p
p(x)= 2x4 + x3 + 10x2 - 31x -18
a. using the rational root theorem list all possible rational roots of P.
b. completely factor the polynomial over the set of...
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07/18/17
A function f with real coefficients has the following characteristics
A function f with real coefficients has the following characteristics
degree f= 4
f has a y-intercept of 52
x-2 is a factor of f
-4/3 and 2-3i are both zeros of f
Find f(x) and write...
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Pre Calculus
07/11/17
A window has a shape of a parabola with vertex at the top and axis vertical. It is 2m wide at the base and 4m high. How wide it halfway?
Solve the following problem. Show show the solution and how to graph. Thank you very much.
Pre Calculus
07/06/17
3x^3-x^2+x-2 divided by x+2
i don't know how to do it.
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Pre Calculus
06/14/17
give P(x)=6x^5-13x^4-34x^3+128^2-132x=45, write p in factored for. be sure to write the full equation, including P(x)=.
thought that I had it right with just factoring it out but not sure how to do it if P(x) is included
Pre Calculus Trignometry
06/13/17
How do you solve this trigonometry question?
The length of one side of the right triangle is 10cm. What might the lengths of the other sides be? Provide 5 solutions
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06/13/17
How do you solve this trigonometry question?
if the hypotenuse of the original right triangle is 100cm, and a vertical line splits the base of the triangle into 2 parts, one with a length of 64cm and the other of 36cm, what are the side...
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Pre Calculus
06/06/17
Find the equation of a line
Find the equation of a line that is parallel to the line x equals x=9 and contains the point (-4 ,3 ) .
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Pre Calculus
05/30/17
Find the complex zeros
Find the complex zeros of the following polynomial function. Write f in factored for f(x)
f (x)= x^3+ 1a. The complex zeros of f are?????
b. Use the complex zeros to factor f.
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05/28/17
Using mathematical induction to prove the statement is true for all positive integers n. The integer n^3 +2n is divisible by 3 for every positive integer n.
Thank you for your help!
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Pre Calculus
05/25/17
solve for x in the interval 0 degrees less than an equal to x less than an equal to 360 degrees: 5(tan x+2)= 3-2 tan x
trigonometric equations for pre calc
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Pre Calculus
05/25/17
A book page that is X inxhes wide and Y inches high contains 64 in^2 of print.
The margins at the top and bottom are of the page are 1 inch deep, and the margins on each side are 1.5 inches wide.
A. Write the area of the page as a function of X
B. Determine the...
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Pre Calculus
05/24/17
Remainder Theorem
Use the Remainder Theorem to determine whether x + 13 is a factor of the polynomial
𝑓(𝑥) = 𝑥^4 + 12𝑥^3 − 9𝑥^2 + 48𝑥 − 52.
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Pre Calculus Math
05/14/17
(3-2x+3x^2+2)(5)
Let f(x)= 3-2x, g(x)= square root of x, h(x)= 3x^2+2. Find the indicated values.
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Pre Calculus
05/08/17
Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = 2 cos 5θ
I would like for someone to explain how to do this. I don't want just an answer. My guess would be about the x-axis because there is a cosine but I don't think this a correct method to find out the...
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Pre Calculus
05/08/17
Need help. Question is in the description.
Tyler threw the ball in to the air. It landed 2.6 seconds later. He released the ball at 4.5 feet. Figure out a function to model the ball. Only algebraic solutions accepted.
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Pre Calculus
05/03/17
sin2xsinx=cosx
Find the exact solutions of the equation in the interval [0,2π)
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04/12/17
Summation with non upper limit
Hi, I woild like assistance with showing work on how to solve a summation question And determining if it is convergent or divergent Thanks in advance!
Question: (summation...
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Pre Calculus Identities
04/10/17
Simplify the following trig expression
Simplify the following trig expression : 1/1-sec x - 1/1+sec x
Pre Calculus Precalculus
04/10/17
write an equation of a parabola with vertex at the origin and the given directrix y=3
Find the standard form of the equation of the parabola with vertex a the origin directrix y =3.
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Pre Calculus Algebra 2
04/09/17
what are the solutions for 2sinø -sqrt root3=0 for 0< ø<2pi
This question is in the trig section of my course and I can't really understand what its asking me...
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