# Pre- Calculus

21,321 results, page 82

### Pre-Cal

The 1st year and 3rd year periods for these accounts are the lengths of time that you must keep the money in the account.(you pay a penalty if you take themoney out before the term is up.) Why might an investor choose a CD with a shorter term rather than a longer one, even ...

### calculus

Find f'(x): f(x)=3(2x^25x+1) I am not sure if the 5x is multiplied to the 2x^2 (I got f'(x)=90x^2) or there is a typo.

### calculus

can someone explain to me the steps to solve this problem? find the derivative: (3x^2+7)(x^2-2x+3)

### Calculus!

What is the velocity of an object dropped from a height of 350 m when it hits the ground?

### Calculus

How many zeros are at the end of the product of the first fifty positive integers?

### Calculus

Pls help solve this problem if sqrt(y)=(arctan)tan-1(x), show that (1+x^2)dy/dx((1+x^2)dy/dx)=2

### Calculus

Find the limit. Use L'Hopitals Rule if necessary. lim (x^2+3x+2)/(x^2+x) x -> 0

### Calculus

find the limit. use L'Hopital's Rule if necessary. lim (x^2+3x+2)/(x^2+1) x -> -1

### Calculus

Minimize S=x+2y with xy=2 and both x and y > 0. Can somebody explain to me in words and numbers how to do this problem.

### Calculus

Determine whether the given orderd pair is a solution of the system ( -2, 1) X/3

### Calculus

The slope of the tangent to the curve (y^3)x+(y^2)x^2=6 at (1.2) is??????????? Is the answer -1/2 or positive, or am i completely off?

### Calculus

Find the slope of the tangent line to the graph of f at any given point f(x) = -2x + 6 at (2,2)

### Calculus III

Derivative of Inverse Trigonometric Functions f(x) = sin(arccos(4x)) What is f'(x)?

### Calculus III

Derivative of Inverse Trigonometric Functions f(x) = cos(arcsin(2x)) What is f'(x)?

### Calculus

Prove the identity and give its domain. 4sinxcosx+sin4x=8sinxcos^3x

### calculus

find the modulus and the argument of the following complex numbers: 15-4i and a-ai where a is greater than 0

### Calculus

prove: if z is a complex number 1/2= the conjugate of z of the absolute value of z squared.

### Calculus - Anti-Derivatives

How would you find the Integral of (cos(x\8))^3, defined from -(4 x pi)/3) to (4 x pi)/3)

### Calculus

Area of rectangle = xy = xã(4r^2 - x^2) Take the derivative. I am having trouble with the algebra.

### calculus

Let f(x)=–5x(x–5). Then f'(–1)= And after simplifying f'(x)= Hint: You may want to expand and simplify the expression for f(x) first.

### Math (Calculus)

y= x^(2x+1) find the derivative of the function using natural log

### calculus - (derivatives)

Find the derivative of the function f by using the rules of differentiation. F(x) = 3 ã x

### calculus

Which of the following is a representation of the domain of the expression: h(x) = 12x + 3 / 2- square root of x

### calculus

Can anyone please explain to me that how can I find the discontinuities of the following function? f(x)=[(x+1)(x+2)]/(x-3)^2 THANKS A LOT~!

### calculus

Evaluate the following limit lim x--> 2 Square root over x^2 - x/2x - 3

### calculus

Find an equation of the tangent line to the curve at the given point. y = 3x^2 - x^3, (1,2)

### Elections

Calculus / Graphical, Numerical, Algebraic: Teacher's Guide with Answers

### calculus

Show that the curve given below has no tangent line with slope m1, where: y = 4 x^3 + 8 x - 6 m1 = 7

### Calculus

Find the derivative of the function, xy-x-12y-3=0. Is the answer -14,I got this from 1-1-12=0, which solves to -14.

### Damon

Thank you so much for all the calculus help! I felt more prepared for the exam!

### Calculus

Find the limit of (10^x - 5^x)/x as x approaches 0 without using l'Hospital's rule

### Calculus

consider the following function: f(x)=sqrt(50-x) find the linear approximation of f(x) at a=1

### calculus

consider the following function: f(x)=sqrt(50-x) find the linear approximation of f(x) at a=1

### 12th grade calculus

let f(x)=x^2 1. show that the line tangent to the graph of f at the point (1,1)is y=2x-1

### calculus and geometry

how close does the semicircle y=radical(16-x^2) come to the point (1,radical3)?

### Calculus

limit as x-> 0 (1+sinx)^(cscx) How do I show that this is indeterminate? Can I say that 1^(1/0) = 1^infinity?

### Calculus

What methods can I use to prove that the limit as (x,y,z)--> (0,0,0) of a function of 3 variables does not exist?

### calculus

i am struggling with the concept of optimization. does anyone have any hints on how to solve these problems???

### calculus

what is three times the square root of the third derivative of x cubed. where x=y-2 and y=8

### calculus

find the relative extreme of f(x) = 3x^4 - 10x^3 + x - 2 using your calculator. explain how you did it.

### calculus

Use integrals to prove that the volume of a sphere of radius R is equal to (4/3)(pi)R^3

### calculus

what is three times the square root of the third derivative of x cubed. where x=y-2 and y=8

### calculus

Find an equation of the tangent line to the following curve at the point (0, 4). xe^y+ye^x=4

### Calculus A

Find the derivative of this function: y=sin(cosx) Any help would be appreciated.

### calculus

7. f(x)= 6x^3- 9x^2- 360x - 5 What interval is it decreasing? What 2 intervals is it increasing? What is the local max?

### CaLcULus

(5x-4)e^(-2x) How do you find the critical point I don't understand how to take the derivative of e^ to a negative?

### Calculus

Determine the area of the region enclosed by the limaçon r=5+2sin(theta)

### Calculus

How do I find the frequency of this oscilliating spring. A= 10cm displacement t= 1s h(t)= Acos2ðft

### Calculus

Is the function F(x)= the square root of 1-x^2 continuous at x = 1? Give the reason for your answer.

### Calculus

Use logarithmic differentiation to determine the derivative of the function defined by f(x)=x^5(x-3)^9/(x^2+2)^4

### calculus

find the point(s) on the graph of y = (2x4 + 1)(x - 5) where the tangent line slope is 1.

### Calculus (Thanks a bunch!)

Simplify the following expression 5lnx - 1/2 lny + 3 lnz

### calculus

Which of the following is the same as 4 ln2x? a) ln8x B)8lnx c)ln8 + lnx d)ln 16^4

### calculus

find the domain and range of the function g(x)= 10+2x-x^2 (all under radical)

### calculus

n(x)=x^5+xe^x, find the real zeroes using newton-raphson methodology.

### Differential Calculus

Given that p=(2q^2 - 5)^2. when q=3, it is increased by 0.7%. find the appropriate percentage change in p.

### Differential calculus

Given that y=x^3/3-2x^2+3x+2 find its turning points and state their nature

### Calculus

Evaluate y' at (2,1) [Implicit differentiation] 5xy-3x-4=0 I got 3/10 and 2/10 but both were wrong.

### calculus - limits

can someone help me determine that limit for the following function, as x --> -2? 2 - abs(x) / 2 + x

### calculus - identities

prove this identity: sec(y) - cos(y)= tan(y)sin(y) THANK YOU!!

### Calculus

Use Mean Value Theorem and find all numbers c in (a,b) 1.x+(4/x) [1,4] Help me!

### Calculus

What is the area of the largest rectangle that can be placed in a 5-12-13 right triangle (as shown)?

### Calculus

f(x) = [3/x^2] - [5/x^7], F(x) is the antiderivative of f(x) with F(1)=0. F(x) = ? I have no idea how to approach this problem. The fractions are scaring me.

### calculus

integrate x*(x+1)^9dx I believe the substitution method is the proper way?

### Calculus

Find the concavity and min and max for f(x) = x*sqrt(x^2+36) defined on the interval [-4, 7]?

### calculus

find the general solution x^2-2(e^y)dy/dx = y^3+e(x^2) i am getting the y^3 dx when i do seperation of variables how do i deal with this.

### calculus

find the general solution x^2-2(e^y)dy/dx = y^3+e(x^2) i am getting the y^3 dx when i do seperation of variables how do i deal with this.

### AP Calculus

Locate the absolute extrema of the function f(x)=2x^2-12x+4 on the closed interval [-6,6].

### calculus

lim (x->0.5 from the left)((2x-1)/|(2x^3-x^2)| = -4 I would have thought positive four. How can this be?

### Math-Calculus

Posted question rewritten lim x-> -1 108(x^2+2x)(x+1)^3 ____________________ (x^3+1)^3 (x-1)

### calculus ||

use a grapher to fine the length numerically (x)=2sin (y) ,pi/3 < y< 2pi/3

### calculus

Use the Table of Integrals to evaluate the integral (x sine(6x^2)cos(7x^2)dx)

### calculus

find the derevative (hint try to use limits) (x^2010 - 1 )\(x -1 )

### calculus

Find an equation of the tangent line to the curve at the given point. y= (9x)/(x+1)^2 P = (0,0)

### calculus

Describe all of the different ways a function may not be differentiable at the point P (a,f(a)).

### Calculus

Find the number c that satisfies the conclusion of the Mean Value Theorem. f(x) = x/(x + 4) [1, 8]

### Calculus

Find the scalar and vector projections of b onto a. a = 2i - j + 6k, b = j + (1/2)k compab = projab =

### Calculus

show the following linearization of the function f(x)=cos(3x)-3sin(3x) at x=2pi

### Calculus

Solve for x: Lnx= -5 I am stuck on this simple qusetion, i know the answer is .01, but I donr't know how to get it. Thanks!

### calculus

Estimate approximately the slope of the tangent of y=2sinx+cosx at the point x=4,2

### vector calculus

find an equation for the plane that contains the line x = 2t-8, y=3t +3, z= 5- t, and the point (5,4,0)

### calculus

What is the volume obtained by rotating the graph y=x^2 for 0<y<1 about the oblique axis y=x

### calculus

find the area of the regions enclosed by the lines and curves. x+y^2=0 and x+3y^2=2 i know the answer is 8/3, but i don't know how to get it.

### Calculus II

How do you integrate the function -- > sinx (4^cosx) from 0 to pi/2 I did "u-substitution" to make it the integral from 1 to 0 of 4^u but then i don 't know where to go from there! Thank you

### calculus

to the nearest metre x=24m and y=6m. Calculate the upper bound for the value of xy

### Calculus

How do I find the integration of √(cot) / sin^2(x) by using substitution?

### Calculus

Resolve u=[3,4,7] into two orthogonal vectors, one of which is collinear with v=[1,2,3].

### Calculus

Resolve u=[3,4,7] into two orthogonal vectors, one of which is collinear with v=[1,2,3].

### Calculus

Resolve the vector v=[7,9] into rectangular components, one of which is in the direction of u=[6,2].

### Calculus

Write a scalar equation of each plane, given its parametric equations. x = 3 - 2s + 2t y = 1 + 3s + t z = 5 - s - 2t

### Calculus

Write this expression as a single logarithm 6ln(x+8)+1/8lnx-ln(cosx)

### Calculus-implicit differentiation

How do I find the normals to the curve xy+ 2x - y = 0 that are parallel to the line 2x + y = 0

### Calculus

Diffentiate the function F(x)=(1/2x)^5 My answer is 5/2x^4. The book says 5/32x^4. what am I doing wrong?

### Calculus

Can someone help me to integrate by substitution the indefinite integral: (sinx)/ (1+cos(^2)x)?

### calculus

addendum to previous ques. hope someone will deal with this seriously.

### Calculus

Find f(x)' of f(x)=x^x^x I logged both sides to get ln y = x^x ln x But I am not sure what step to do after that.

### calculus

Solve this over the interval [0,2pi): sin(3x)=(square root of 2)/2

### Calculus III

P=(2,1,0) Q=(1,5,2) R=(-1,13,6) Are P, Q, and R collinear? If not, find a vector normal to the plane containing them.

### Calculus

Use the cross product to find the area of the triangle with vertices: P=(1,1,5) Q=(3,4,3) R=(1,5,7)