Calculus (Answer Check)

88,703 results, page 99

  1. calculus

    find the tangent to the ellipse £¨x^2/4)+(y^2/4£©=1 at the point (1,rad(3)).
  2. Calculus

    If the normal to f(x)= (3x/(1+x)) at (2,2) cuts the axes at B and C, determine the legnth of BC.
  3. Calculus

    Find The Derivative y= 9e^(x)/ 2e^(x)+ 1 Please Show Work
  4. Calculus

    Find The Derivative y=5x^(2)e^(3x) Please Show Work
  5. calculus

    Find an equation of the tangent line to the curve at (8,0). y=ln(x^2 -8x +1)
  6. Calculus (2)

    find the first and second derivative of: f(x) = (x+2)/e^x I get to: f'(x) = e^x - (x+2)(e^x) / (e^x)^2 I'm stuck at that
  7. calculus

    Find a, such that the function f(x)=3x+rad(a-x^2) has the domain [-6,6].
  8. Calculus

    If f(x) = x ln(1+x) estimate the value of ln (2.1) given that ln2 = 0.6931.
  9. Pre Calculus

    find all solutions of the equation 1. x^3+27=0 2. x^3-8=0
  10. Calculus

    Let f(x)=x^3+3x and g(x=5x^2-x Determine the area of the region enclosed by the graphs of f and g.
  11. calculus

    find the area of the region under y=6 ln(3 x) and above y=8 for 4<x<7
  12. calculus

    Find the derivative. f(x)=ln(8-e^-x) I got -e^-x/8-e^-x but it was wrong. WHAT DID I DOOOO?!
  13. calculus

    Find the derivative. f(x)=ln(8-e^-x) I got -e^-x/8-e^-x but it was wrong. WHAT DID I DOOOO?!
  14. calculus 1a

    simplify the following expression tan(sin^-1(2x))
  15. Calculus

    what happens when the limit goes to infinity 4x-6sqrt(x)
  16. calculus

    Find the area S of the regions y= square root (x) =x/3 x=25
  17. calculus

    Find the area S of the regions y= square root (x) =x/3 x=25
  18. Calculus

    Find the total area bounded by the curves y = x^3 and y = x^5 .
  19. Pre-Calculus(Help)

    Partial Fraction of the Rational Expression: x^2+x+8/x^3+x
  20. Math (Calculus)

    Find the derivative of (ln(tan(x))/3pi
  21. calculus

    Solve the following differential equation: f"(x)=sinx, x(0)=0, x'(0)=1
  22. calculus 2

    what is the polar area between r=5sinx and r=5cosx
  23. calculus

    Find the derivative d/dx of the integral from x to a of cos(sin(t)) dt
  24. calculus

    Find an equation of the tangent line to the graph y=(x^3 + 2)^5 at x= -1
  25. Calculus

    Use the midpoint rule to approximate the integral 6x-9x^2 from 2 to 11 with n=3
  26. Calculus

    Use the midpoint rule to approximate the integral 6x-9x^2 from 2 to 11 with n=3
  27. Calculus

    Use the midpoint rule to approximate the integral 6x-9x^2 from 2 to 11 with n=3
  28. calculus

    find the derivative of t=(Sqroot of X^2+1/2)+a-2/3 please help fast!!
  29. pre calculus

    how to figure out: sec squared x = 1/10
  30. math-calculus

    (4)/(x-3)+(2)/(3-x) (4)/(x-3) + (2)/(-1)(-3+x) i factor out a negative 1 from 3-x. 4/(x-3)+ 2/(x-3) 6/x-3 it suppose to be 2/x-3 how i get that?
  31. math/calculus

    find the domain and range of the function f(x)=x^2-9/4x^2+x
  32. calculus

    y =ln((x^2+1)/(x^2-1))^1/2 Find the first derivative for this ln square division.
  33. Calculus

    Find all the relative extrema of f(x) = x = x3 – 3x2 + 4.
  34. 12th Grade Calculus

    how will you multiply y = ae^3x + be^-2x with dy/dx = 3ae^3x - 2be^-2x
  35. Calculus

    Using Descartes' Rule of Signs, solve: f(x)=x^3+x^2-x+1.
  36. calculus

    Hi i need help for calcul with a Moivre's theorem: ( 1/2 ( -1 - i√3 )) ^3 thanks for your help
  37. calculus 2

    1.Find the length of the curve y=ex+1e−x between x=0 and x=1.
  38. calculus 2

    .Find the length of the curve y=e^x+1/4 e^−x between x=0 and x=1.
  39. calculus

    from the first principles,find the deriviative of 3/x with espect to x
  40. Calculus

    Find the area bounded by y=1/x, the x-axis and the lines y=1 and x=4
  41. calculus

    volume of the solid enclosed in y=square root of x y=0 and x=16
  42. calculus

    int_(-2)^2sqrt(4-x^2)text()dx evaluate the integral
  43. calculus

    int_(-2)^2sqrt(4-x^2)text()dx evaluate the integral
  44. calculus

    an equivalent representation of the definite integral of 3 to 1 2xcos(x^2)dx is
  45. calculus

    x +13/x-16 less than or equal to solve the following inequality
  46. Calculus

    Examine the continuity of the function h(x)=[-x, if x<0 .......0, if x=0 .......x, if x>0 I don't understand this question...
  47. calculus

    The average (mean) value of (1/x) over the interval 1<= x<= e is a)1 b)(1/e) c)(1/e^2)-1 d)(1+e)/2 e) 1/(e-1)
  48. calculus

    wat is the ans of this solutions? y=sin^4x cos4x? ^
  49. Calculus AB

    I have to find the integral of (e^3lnx + e^3x)dx. Can someone help me?
  50. calculus

    I need help finding the derivative of (x^2+sinx)secx
  51. Math/Calculus.

    Suppose (x^2)*(e^(-2y))= ln(xy) Find dy/dx by implicit differentiation.
  52. Calculus

    Evaluate this limit, if it exists: lim (7-x)squared - 9 / 4-x x->4
  53. Pre- Calculus

    Evaluate the trig function tan33degress
  54. Calculus

    Evaluate the integral from [(2/square rt 2),0] of dx/sqaure root of (4-x^2)
  55. calculus

    why is that when it comes to diagonal it must be divided into 2
  56. COLLEGE CALCULUS. HELP!

    Let f(x)=(-3x^2+6)^4(9x^2+7)^14, Find f'(x). f'(x)= (-3^2+6)^4 d/dx(9x^2+7)^14+(9x^2+7) d/dx(-3x^2+6)^4 =(-3x^2+6)x14(9x^2+7)^13 d/dx(9x^2+7)+(9x^2+7)^14x4(-3x^2+6)^3 d/dx(-3x^2+6) =14(-3x+6)^4(9x^+7)^13 (18x)+ 4(9x^2+7)(-3x^2+6)^3 (-6x)
  57. COLLEGE CALCULUS. HELP!

    Find the derivative of the function. 1. F(x)= (1+2x+x^3)^1/4 2. f(t)= (1+tant)^1/3
  58. calculus

    3. For what value of k will x+k/x have a relative maximum at x = -2? A. -4 B. -2 C. 2 D. 4 E. None of these
  59. calculus

    How do I find the indefinite integral of cosx/(1-cos^2 x)dx?
  60. COLLEGE CALCULUS.

    i don't understand this problem Let F(x)=f(x^4) and G(x)=(f(x))^4. You also know that a^3=2, f'(a)=13, f'(a^4)=15. Find F'(a) and G'(a).
  61. calculus

    Evaluate the following integral: (X)(cube root(x+1))dx
  62. Calculus AB

    The integral from a to b of f(x)/g(x) equals ln[(g(b)/g(a)]. Find g'(x), and explain your reasoning.
  63. calculus

    FInd the area of the region bounded by the graphs of y= 3x^2+1 , y=0, x=-2.7, x=2.5
  64. calculus

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

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

    Show that a,b,c, and d are positive integers when, ((a^2+1)(b^2+1)(c^2+1)(d^2+1))/abcd≥16
  67. pre-calculus

    Convert from polar to rectangular r=3cos2theta
  68. Calculus

    For which value(s) of k will the dot product of the vectors (k,2k-1, 3) and (k,5,-4) be 7? I did this so far, 2k-1=5 6/2 k=3
  69. calculus

    find the total differential of the function f(x,y)= xye^(x+y)
  70. 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)
  71. Calculus

    Are the points P(1,2), Q(7,3) and R(-2,1) o the line with vector equation r=(19,5) +s(6,1), SeR
  72. calculus

    evaluate lim of x as it approaches infinity for sqrt of x^2 -1/2x+1
  73. calculus

    use differentials to approximate the value of the squareroot of 4.3
  74. Calculus

    find the region enclosed by the given curves: 4x+y^2=9, x=2y
  75. calculus

    Solve for x on the interval (0, 2pi] (sin2x + cos2x)^2 = 1
  76. Calculus

    Find the derivative 1. y = e^xSin²x 2. y = (x³+1)e^-4 3. y = x²e^Sinx
  77. calculus

    find the interval on which the graph of f(x)=ln(x^2+1) is concave upward.
  78. Calculus

    Find the minimum distance from the parabola x + y^2 = 0 to the point (0,-3).
  79. Calculus

    Find the minimum distance from the parabola x + y^2 = 0 to the point (0,-3).
  80. calculus

    Find the area of the region enclosed by y=6x2 and y=x2+15
  81. calculus 3

    find and sketch the natural domain of f(x,y)= √(x+y^2 )/(x^2+y^2 )
  82. calculus

    find to the nearest integer the value of C that satisfies (y-6)dy=(x+4)/(y-3)dx, y(-1/12)=2
  83. calculus

    find the volume of the region bounded by y=e^x, y=2, and the y axis
  84. Calculus

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

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

    Integrate e^((x^3)/2) How do I start? I know that the integral of e^x is just e^x plus C, but what do I do with the ((x^3)/2)? Thanks!
  87. CALCULUS!

    When S is sales and t is time, and the original function is S(t), what does S'(24) and S''(24) represent?
  88. Pre-Calculus

    What is the inverse of matrix C, to the nearest hundredth? 10 -6 C= -12 2
  89. Pre-Calculus

    What is the inverse of matrix A, to the nearest tenth? -2 7 A= 6 -8
  90. Calculus

    6. Find out if the line r = (1, 3, 8) + t (-2, 5, 7) is parallel to the plane 3x + 4y - 2z = 1
  91. Calculus

    6. Find out if the line r = (1, 3, 8) + t (-2, 5, 7) is parallel to the plane 3x + 4y - 2z = 1
  92. Calculus

    6. Find out if the line r = (1, 3, 8) + t (-2, 5, 7) is parallel to the plane 3x + 4y - 2z = 1
  93. Calculus

    Find the shortest distance from a point P(2,-1,2) to a line L r= [-1,0,7] + t [4,1,-2].
  94. Calculus

    The graph of f(x)=(ax+b)/(x^2 - 5x + 4) has a horizontal tangent line at (2, -1). Find a and b
  95. calculus

    find the derivative of the function f(x)= tan (10x^2)
  96. Calculus

    Differentiate each function a) y = Cos³ x b) y = Sin(x³) c) y = Sin²xCos3x
  97. CALCULUS

    Evaluate limit L'Hospitals Rule: lim x->0+ (x)^(pi/2)
  98. Calculus

    Apply Rolle's theorem if possible and find c if y=x^(2/3)-16
  99. Calculus

    Write the equation of an ellipse with the foci (17, 0) and (-17, 0) and co-verticies (0, 15) and (0, -15).
  100. calculus

    How do I take the partial derivative of P with respect to r of the following: D ~ P = ‡”(t=1 to T)[t ~ (CF)_t/(1+r)^t ]
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