# Pre- Calculus

21,911 results, page 70-
## integral calculus

integrate. (1):sin2xcos3x (2):5(cos3x)^2 -
## Calculus

How do you find the first and second derivative of the following function? P(t)=20/(1+3e^-0.02t) -
## calculus

find the slope of the tangent at the given point. Y=2x^4 (-1, 2) -
## Calculus

Let f(x) = x*sin(5.8/x), x not equal to Zero and f(x) = L, x = Zero. Find the value of L so that f(x) is continuous at Zero. Thanks!! -
## brief calculus

Find f(x) if f(1) = 1 and the tangent line at (x, f(x)) has slope 6/x -
## calculus

fin derivative of the function (t+e^t)(4- sqrt t) -
## Calculus

find second derivative of f(t)=inverse cos(4t) -
## Calculus i need help

(Cosx)^y=x^siny find dy/dx at point pi/(4,0) -
## calculus

find the derivative of the function f(x) = e^(3x) sec (7x) -
## calculus

the value of f(4) is negative, but the function is increasing rapidly at x=4 -
## calculus

Integral of ln(sinx+cosx) with respect to x from -pi/4 to pi/4 -
## Calculus

Evaluate the indefinite integral. (e^7x)/(e^14x+16)dx -
## Calculus

In the following question, k=5.8 Let f(x)= {x sin (k/x) x ~= 0, {L x = 0. For the given value k, find the value of L so that f(x) is continuous at 0. Many thanks!! -
## Calculus

What is the least positive integer that has exactly thirteen factors? -
## Calculus

Find the average value of the function on the given interval: f(x) = e^x/5, [0,5] -
## Calculus ll

find the second order derivative, rxy(x,y) for r(x,y)=xy/8x+5y -
## Calculus

Differentiate the following function. f (x) = 7 sin(x) + 1/6 cot(x) -
## calculus

If Sn = 1 + 6 + 11 + 16 + 21 + 26...... where an = (5n − 4), what would be the mathematical expression represented by Sk + ak + 1? -
## Calculus

Determine all values of x for which each function is discontinuous. F(x)= 3x+4 / 4x^2 - 2x -2 -
## Calculus

Find the indicated limits. Lim x-> 1- sqrt 1 - 1/ x-1 -
## Calculus help

Find the area under the graph of f(x) = e-ln(x) on the interval [1, 2]. -
## Calculus

How do you find the derivative of f(x)=sin2x/cos2x -
## calculus

Which is the correct cofunction identity for tan? -
## calculus

Simplify the expression: tan(-x)csc(x) -
## calculus

given the circle x^2+y^2+2x-2y-14=0, find it's intersection with the y-axis. please help me.... -
## Calculus

write the equation of line tangent to f(x)=(1/3x^3)-x^2+x-1 when x=1 -
## Differential Calculus

Find the limit of (10^x - 5^x)/x as x approaches 0 -
## calculus

find an antiderivitive for integral(f looking sing)3/3x+4 dx -
## calculus

sqrt(x^2 - 9) / x I need to solve this using the definition of a derivative [f(a+h) - f(a)]/h I can't seem to get it :\ -
## calculus

Largest 5 dizit number exactly divisible by 32 ? -
## Calculus

The length of the graph of f(x) = 2/3x^(3/2) over [0,p] equals 52/3. Find p. I think p is about 8.09. -
## Calculus

find f'(x) f(x)=cos(2x)tan(2x)/2√x -
## calculus

find the conjugate on z times w if z=[3,120] and w=[-1,-15] -
## calculus

identify and explain all the kinds of discontinuity for y = (x + 4)/(x^2 - 16) -
## Calculus Sigma Notation

Find a and n such that: 8+16+32+64+128 (k=a) a=? n=? -
## Calculus

Lim x-->infinity 10/x+10 find the limit -
## Calculus

For p = 15e^-x, 0 < x < 7, find the local extrema -
## Math (Calculus)

Determine the area of the region y=e^x,y=x^3 -
## calculus help

Evaluate!!!! integral -10 to 10 ((2e^x)/(sinhx+coshx))dx Thanks! -
## calculus

If z = 2cis 60°, find z^4 in rectangular form. -
## calculus

find the domain of the function a) f(x,y) = e^(-xy) b) h,(u,v)= √(4-u^2 - v^2) -
## Calculus

Determine the maximum and minimum value of the function f(x)=-xe^x + 2. -
## calculus

find the area of the region: y=4 y=2sqrt(x) y=3-x -
## Calculus

What is the sum of all the odd #s between 100 & 200?? -
## Calculus

Consider the function f(x)=(7/x^2)-(6/x^6). Let F(x) be the antiderivative of f(x) with F(1)=0. Then F(2) equals _____. -
## calculus

for abs value of x <1, the derivative of y= ln square root 1-x^2 is.....? -
## calculus

find the (conjugate of z) times (w) if z=[3,120] and w=[-1,-15] -
## Calculus

Evaluate by U-substitution: the integral of xcubedroot(x-2) dx -
## brief calculus

x/(x − 6)^2 I get ln(x-6)- 6/(x-6)+ C but it isn't correct, what should the answer be? -
## calculus

find derivative of (8sqrt(x)+(9/2root3(x)))^2 -
## calculus

Given f(x) = 2(x^(5/3)) - 5(x^(2/3)) Find the slope of the tangent at each x-intercept -
## calculus

Find a function f from R to R such that f is continuous at only one point? -
## Calculus

I need to find the next 3 terms...but I can't figure out what the rule for this! 3, 5, 3 1/2, 4 1/2, 3 3/4, 4 1/4, 3 7/8, 4 1/8... please help! thank you so much -
## Calculus

Lef f be the function defined by f(x)=x^3+x. If g(x) is the inverse of f(x), g(x)=f^-1(x) and g(2)=1, what is the value of g'(2)? -
## Calculus

[Implicit Differentiation] (6+y)^3 + 4y = x + 55 with y' at (1, -2) y' at (1,-2) =? I got this far but I'm not sure if I'm doing it right: 3(6+y)^2(1dy/dx)+4dy/dx=1 -
## Calculus help

Lim(x>inf)=2000x^4/200x^4= 10 -
## Calculus

Integrate Cos^7(2x) Explanation would be helpful -
## Calculus First Derivatives

If f(2) = 2.5 and f'(2) = -2.5, then f(2.5) is approximately... I have no idea how to do this without an equation. -
## calculus

find the derivative of y= 3-secx/tanx -
## calculus

find the equation of the tangent line to y=4^((x^2)-6x+3) at x=4 -
## calculus

Find an equation of the line tangent to 2x^2-x-ln(x-4)-y^2=9 at (5,6) -
## calculus

Find limit of 2x+1-cosx/3x as x approaches 0? -
## Calculus

For what values of k does the series ∑n=1 to infinity (11/(2k^2 + 3))^n converge? I think this is k < -2 and k > 2. -
## calculus

2x^3+3x^2-12x-7 the absolute maximum. I need help because it seems no one else in my class knows how to. -
## calculus

find the total differential of the function. f(x,y) = 5y/x-y -
## Calculus

Find dy/dx by implicit differentiation: x^2-2xy+y^3 = c Thank you! -
## calculus

U-Substitution 1. 3x(sin^2((3x^2)+1)cos((3x^2)+1)dx 2. (x^3)(sqrt((3x^2)+1)) dx u = ((3x^2)+1) then? -
## ap calculus

f(x)=x^3-2x^2+x and f'(x)=3x^2-4x+1 Find the value(s) of x where f(x) has a horizontal tangent (slope=0) -
## Math

Find dx/dy by implicit differentiation x^2y+y^2x P.S: It's calculus -
## Calculus

Calculate the dot product of two vectors: m = [4,5,-1] and n = [6,-2,7] -
## calculus

Evaluate the following integral: (X)(cube root(x+1))dx -
## Calculus

two complex numbers Z and W are related by the formula W=(Z+1)/(1-Z) what is W if Z=1.5i? thanks for the help! -
## calculus

limit as n approaches infinity for the function ((-1)^n)((5n+7)/(6n+5)) -
## Calculus

differentiate each function a) y = (cscx)(cotx) b) y = x^2 + e^(2x) -
## Calculus

Let A be the area of the circle with the radius r. if dr/dt = 5, find dA/dt when r = 1 -
## Calculus

use the intermediate value theorem to determine whether there is a zero f(x) = -3^3 - 6x^2 + 10x + 9 ; [-1,0] -
## calculus

find implicit derivative of 2y^2 - x^2 = 3xy + 5 -
## calculus

Evaluate the indefinite integral: y^3*sqrt(y + 5) dy. -
## calculus

evaluate the intergral using substitution ingergral[(x^2-e^3x)/(x^3-e^3x)^2]dx -
## Another Calculus help plz

Show that if y=tanx/2 dy/dx=1/sinx -
## Calculus

Find a formula for the inverse of the function. f(x) = (1 + 9x) / (8 - 4x) -
## calculus

find the approximate change in z when the point (x,y) changes from (1,1)to (1.01, 0.90) f(x,y) = xe^(-y) + ye^(-x) -
## Calculus

Let f(x)=x^2-8x+16 and g(x) x^2-16. For what values of x is f(x)/g(x) increasing? Explain plz~ -
## 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? -
## Calculus

Find the critical numbers of the function. h(t)=t^3/4-6^1/4 -
## calculus

Can someone help me with the problem? f(x)={ln 2x, 0<x<2 {2lnx, x >or= 2 The limit lim x-> 2 f(x) is? -
## Calculus

can someone help me find the antiderivative of: f(x)=4x times the squareroot of (1-x^2) -
## Calculus

Find the foci of the equation 25^2 + x^2 = 600 Thank you! -
## Calculus AB

What are the six trigonometric functions of 2010 times pi? -
## calculus

Find a formula for the inverse of the function f(x) = (4 x-1)/(2x+3) -
## Calculus

I am lost. Find dy/dx by implicit differentiation. 1) 5y-2x^2=x-3 -
## Calculus please help

Use the Midpoint Rule to approximate the integral from 7 to 17 (1x-1x^2)dx with n=3 -
## Calculus

Show that the vectors (-1,2,3), (4,1,-2) and (-14,-1,16) do not lie on the same plane -
## calculus

Find the limit as x approaches -4 of 4-lxl/4+x -
## calculus

Given the function h : x -> 3x + c and h^-1 : x -> cx/m - 1, where c and are constants, find the values of c and m -
## Calculus AB

If r and s are roots of the pokynomial equation x^2 + bx + c, show that b=-(r+s) and c=rs -
## Calculus

Find the domain of the following function h(x,y) = sqrt(x-9y+5)? -
## Calculus

Given f'(x)=7cosx–11sinx and f(0)=1, find f(x)= ____? -
## calculus

For a function f, let f*(x)=lim (f(x+h)-f(x-h))/h h->0 Determine f*(x) for f(x)=cos(x) -
## Differential Calculus

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