88,703 results, page 88

1. ### Pre-calculus

Describe the end behavior of f(x)=2x^4-5x+1.
2. ### Calculus

I need help finding the vertical asymptote of f(x)= 1-x -------- 2x^2-5x-3
3. ### calculus

Factor the given equation: p(x) = x^3 - 25x
4. ### calculus

Evaluate the following limit lim x^2 + 3x - 40 x-->5 ------------- 3x + 10 - x^2
5. ### Calculus

How is 2cos(4x) the derivative of f(x)=sin(2x)cos(2x)?
6. ### Calculus

If d/dx(f(3x^5))=9x^4, find f'(x) I can't figure out what this means
7. ### Differential Calculus

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

Find dy/dx by implicit differentiation. sqrt(3 x+y)=2+x^2y^2?
9. ### calculus

find the critical numbers of the function 2t^(2/3)+t^(5/3)
10. ### Calculus

How do you integrate square root of (4-x^2) ? Pleasee help!
11. ### Calculus

series: n=1 to n=inf of 6/(n^3-4) convergent or divergent?
12. ### calculus

Let f and g be differentiable everywhere. If g is the inverse of f and g(-2)=5 and f'(5)=-1/2, then g'(2)=? PLEASE HELP! Thanks
13. ### multivariable calculus

int (30y1y2)dy1 ?
14. ### calculus

the second derivative of y for the point (-1,1) for the equation x^2y+3y-4=0
15. ### calculus

implicit differentiate this equation in terms of y x^2y^2=(y+1)^2(4-y^2)
16. ### calculus

find dy/dx of xsiny+cos2y=cosy
17. ### Calculus

If f(x) and g(x) are continuous functions with f(6)= 3 and limit as x approaches 0 of (5f(x) - g(x)) = 4, what is g(6)?
18. ### Calculus

Washer Method: y=x^3, y=1 ,x=2 aroud the Y axis
19. ### Calculus

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

how do you find the x and y intercepts of an equation? i forgot.
21. ### calculus

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

evaluate: integration of x^2 (square root of (1-2x^3))dx
23. ### Calculus

Evaluate the integral: sin^2(5x)cos^2(5x)dx
24. ### calculus

integrate log base 10 x / x dx i don't understand this

26. ### calculus

what are the steps and explanations for differantiating this function? y = ln(e^-x + xe^-x)
27. ### Calculus

How does ln(e^-x) = -x I know that the derivative of ln is 1/x so it would be 1/(e^-x) but how does that simplify to -x? I am confused....
28. ### calculus

how do you take a limit of [ln(1+e^n)]/2n as n goes to infinity?
29. ### calculus

how do you find the limit as n approaches infinity of n/(2^n + n)?
30. ### Calculus

How to integrate with position, velocity and accelleration
31. ### Calculus

Evaluate the limit. lim x-->infinity 5x+6/6x^2-3x+7
32. ### Calculus

f(x)=sin^(7)x The 7 is an exponent and the x is not. Find the derivative.
33. ### calculus

find the max point on the graph f(x) = -1/3x^3 + 3x^2 - 5x
34. ### calculus

Differentitate y = e^x^2 -^5^x +^4 so far i have dy/dx = 2x e^(x^2) - 5^(x)* ln 5 + can you help with the rest?
35. ### calculus

simplify the following: 2ln(x-3)+ln(x+2)-6ln(x)
36. ### Pre Calculus

log(log10^10,000)
37. ### Calculus

Using the first of these limits, find f'(3) if f(x)=4x^2+4x-2
38. ### calculus

find the first derivative of f(x)=(3-4x)^5tan(2x^2-x-1)
39. ### Calculus

The expression e^x / e^(4+x) can be written as e^f(x), where f(x) is a function of x, find f(x)?
40. ### calculus

Find the limit. lim (5u^4+7)/(u^2-2)(2u^2-1) u-->infinity
41. ### calculus

Determine whether f '(0) exists. f(x) = {xsin(10/x) if x can not = 0 0 if x=0
42. ### Calculus

[Inverse Functions] f(x)= 5cos(x)sin^(-1)(x) f'(x)=?
43. ### calculus

Differentiate the following function. y = (5 x^2 + 7 x + 6)/sqrt(x)
44. ### calculus

If 5x^2+3x+xy=2 andy=-12, find y'(2) by implicit differentiation.
45. ### Calculus (derivatives)

Find the derivative of cos^2(4x)
46. ### Calculus

What is the antiderivative of f(x)= 2x^8 + 10x^5 - 8x^4 - 4? I got (2/9)^9 + (10/6)^6 - (8/5)^5 - 4x but it's not right.
47. ### Calculus

The linear approximation at x = 0 to sin (5 x) is A + B x. Find A and B?
48. ### calculus

find the derivative of y=sqrt of arctan x
49. ### calculus

what is the the derivative of the absolute value fuction x-3
50. ### Calculus

3 ⌠ 2⌡ (2x^2+5) / x^2 dx =? I got 1.66 but it was wrong.
51. ### Calculus

Find the area enclosed between f(x)=0.4x^2+5 and g(x)=x From x=-5 to x=8
52. ### calculus

find the derivative of f(x)=cot(3x)csc^2(3x)
53. ### 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)
54. ### Calculus

Express the four fourth roots of 1/2 + ã3/2 i
55. ### Calculus

Express the following in Sigma notation 2+8+18+32+50+72
56. ### Calculus

Express the following in Sigma notation 2+8+18+32+50+72
57. ### 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?
58. ### Calculus

The total area enclosed by the graphs of y=6(x^2)–(x^3)+x and y=(x^2)+7x is ..
59. ### Calculus

lim x->9 1 1 - - - 3 square root of x ___________________________ x-9
60. ### calculus

Deternime the instantaneous rate of change at x=2 for: y=x-2x^3

62. ### calculus

Use the principles definition to find dy/dx for: y= -3x^2
63. ### calculus

lim sinx as x approaches pie/r
64. ### calculus

lim (-x+10)/(x©÷-100) x¡æ10 is this correct? 1/20
65. ### Calculus

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

differentiate y=x^2x. show all work
67. ### Calculus

Find the total derivative dz/dt, given z=f(x,y,t) where x=a+bt and y=c+dt
68. ### calculus plzz help!!!

Differentiate the following function. ((8x^1/2)+(9/2x^1/3))^2
69. ### calculus

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

Find f' for each of the following where g and k are differentiable functions: f=(g^3)(k^2)
71. ### calculus

find f' for each of the following where g and k are differentiable functions. F= g{sq.rt. of k(x^2)}
72. ### calculus

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

Given F(x) = ax+3, x>5 8 , x=5 x^2 + bx + a, x<5 Find a and b so that f(x) is continuous everywhere.
74. ### calculus

How do you solve the initial value problem? (dy/dx)-2y+4=0, y(1)=4
75. ### Calculus

find f'(x) f(x)=cos(2x)tan(2x)/2√x
76. ### Calculus

Lim x-->infinity 10/x+10 find the limit
77. ### calculus

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

C(X)= 2.7X +4.7 SQRT OF [400^2 + (780-X)^2]
79. ### Calculus

How do you find the derivative of: y= 2sinx cosx
80. ### Calculus

How can i find f''(x) of the function f(x)= 2(cosx)(sec^2x)
81. ### Calculus

How do i find the second derivative of f(x)= tan(1-x)^1/2
82. ### Calculus

How can i find the ln of both sides of the equation? 6=6e^3x and O.2= e^-kt
83. ### pre-calculus

Solve this Function: (3x-7)^2 (x^2-9x+18) ---------------------- x (x^2-12x+40) (x^16)
84. ### pre calculus

How do you simplify cos ((pi)/2) - feta?
85. ### CALCULUS

Show that the quadrilateral with verticies at P(0,2,5), Q(1,6,2), R(7,4,2), and S(6,0,5) is a parallelogram.
86. ### Calculus

Find the volume of the tetrahedron with verticies (1,1,2), (3,-4,6), (-7,0,-1) and (-1,5,8).
87. ### Calculus

f(x)= 1/x, x greater than 7 3x, x less than or equal to 7 Find f(7t)
88. ### Calculus

y=x^2-11x+30 For what values of x is y greater than or equal to 0?
89. ### calculus

f(x)= 1/x, x greater than 7 3x, x less than or equal to 7 Find f(7t)
90. ### calculus

Find the derivative of the function. y = cos^4(¹t - 8)
91. ### calculus

Calculate dy/dt using the given information. xy + x = 12; dx/dt = -3, x = 2, y = 5?
92. ### calculus

Calculate dy/dt using the given information. (x+y)/(x-y)= x^2 + y^2; dx/dt = 12, x = 1, y = 0?
93. ### calculus

Calculate dy/dt using the given information. (x+y)/(x-y)= x^2 + y^2; dx/dt = 12, x = 1, y = 0
94. ### calculus

find all critical points of f(x) = x^4 – 4x^3 + 4x^2
95. ### Math - Calculus

I have to solve for x in this problem: (3x+5)/[(x-1)(x4+7)=0
96. ### calculus

find the domain of f(x)=5/¡Ì(x2-4) and also range
97. ### Calculus

find the area of the region. 2y=4sqrtx , y=3 and 2y+2x=6 ?