# Pre- Calculus

21,911 results, page 70
1. ## integral calculus

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

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

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

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

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

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

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

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

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

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

Evaluate the indefinite integral. (e^7x)/(e^14x+16)dx
13. ## 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!!
14. ## Calculus

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

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

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

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

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

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

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

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

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

Which is the correct cofunction identity for tan?
24. ## calculus

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

26. ## Calculus

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

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

find an antiderivitive for integral(f looking sing)3/3x+4 dx
29. ## 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 :\
30. ## calculus

Largest 5 dizit number exactly divisible by 32 ?
31. ## 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.
32. ## Calculus

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

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

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

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

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

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

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

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

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

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

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

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

What is the sum of all the odd #s between 100 & 200??
45. ## 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 _____.
46. ## calculus

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

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

Evaluate by U-substitution: the integral of xcubedroot(x-2) dx
49. ## 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?
50. ## calculus

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

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

Find a function f from R to R such that f is continuous at only one point?
53. ## 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
54. ## 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)?
55. ## 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
56. ## Calculus help

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

Integrate Cos^7(2x) Explanation would be helpful
58. ## 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.
59. ## calculus

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

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

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

Find limit of 2x+1-cosx/3x as x approaches 0?
63. ## 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.
64. ## 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.
65. ## calculus

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

Find dy/dx by implicit differentiation: x^2-2xy+y^3 = c Thank you!
67. ## 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?
68. ## 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)
69. ## Math

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

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

Evaluate the following integral: (X)(cube root(x+1))dx
72. ## 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!
73. ## calculus

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

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

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

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

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

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

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

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

Find a formula for the inverse of the function. f(x) = (1 + 9x) / (8 - 4x)
82. ## 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)
83. ## 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~
84. ## 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?
85. ## Calculus

Find the critical numbers of the function. h(t)=t^3/4-6^1/4
86. ## 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?
87. ## Calculus

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

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

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

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

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

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

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

Find the limit as x approaches -4 of 4-lxl/4+x
95. ## 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
96. ## Calculus AB

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

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

Given f'(x)=7cosx–11sinx and f(0)=1, find f(x)= ____?
99. ## 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)
100. ## Differential Calculus

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