calculus

posted by gen

1. if f(x)=3^x-3^-x, find :f(2),f(-1)
2. if y1=x^2+3x-1 and y2=x-5,
find: a. y1+y2
b. y1-y2
c. y1(y2)

please show solution thanks.

  1. HaRI

    f(2)=80/9
    f(-1)=-8/3

Respond to this Question

First Name

Your Answer

Similar Questions

  1. calculus

    find the solution of the differential equation dy/dt = ky, k a constant, that satisfies the given conditions: y(0)=50, y(5)=100 please show steps. INtegrate dy/dt I think the answer will be in the form of y=e^kt + C check that and …
  2. Calculus

    Given the function: f(x) = x^2 + 1 / x^2 - 9 a)find y and x intercepts b) find the first derivative c) find any critical values d) find any local(relative) extrema e) find second derivative Please show me how u got this!!
  3. Calculus

    Given the function: f(x) = x^2 + 1 / x^2 - 9 a)find y and x intercepts b) find the first derivative c) find any critical values d) find any local(relative) extrema e) find second derivative f) discuss the concavity g) find any inflection …
  4. Calculus

    Given the function: f(x) = x^2 + 1 / x^2 - 9 a)find y and x intercepts b) find the first derivative c) find any critical values d) find any local(relative) extrema e) find second derivative f) discuss the concavity g) find any inflection …
  5. Science

    A solution is prepared by dissolving 38 g of H2S04 in 220 g water. If the density of the solution is 1.96 g/ml, find its: molality molarity mole fraction of the components of the solution normality This assignment is needed tomorrow. …
  6. Calculus Help Please

    Consider the implicit function ln(xy)-cos^-1(x-1)=x a. Find dy/dx. b. Find y when x = 1. c. Find the equation of the tangent line in slope-intercept form when x = 1. Show steps please! Thanks!
  7. Math- Calculus

    I need help with these problems, I cannot find a similar example to help me in the book: 1. Find lim x->infinity (e^(-2x) + sin x). 2. Find the derivative of sqrt(9-x) using the limit process. 3. Find lim x-> -infinity (x + sqrt(x^2 …
  8. Calculus

    how can you find the bounderies given by the curve x=4sqrt(y) and y=4sqrt(x)?
  9. Pre-Calculus

    Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4x - y + 3z = 12 x + 4y + 6z = -32 5x + 3y + 9z = 20 Please help me..
  10. calculus-add

    (2y-1)dy/dx=(3x^2+1) given that x=1 when y=2 plz show step thanks 2) (a)find the general solution of the equation (x-2)dy/dx+3y(x-1)/(x+1)=1 b)given the boundary condition y=5 when x=-1,find the particular solution of the condition …

More Similar Questions