Answers created by Andrew I.

• Back to user's profile
• Next
• Lim (2x-1)2-9 / x+1 x->-1 How to Evaluate the limit ?
  
• What is the integration of I = int(1-2x³).x².dx by using the correct substitution for t = _ ?
  
• How do you divide `(2x^4+5x^3-3x+1)/(x^2-x+2)`?
  
• Integral of cos^5x dx?
  
• How do integrate this `int (e^x + e^-x)/(e^x - e^-x)dx` without hyperbolic indentities, preferebly with subsititution?
  
• What is the antiderivative of `x/(x+1)`?
  
• Why is the efficiency in the below question 0.25 not 0.33?
  
• A charge of `2 C` is at the origin. How much energy would be applied to or released from a `3 C` charge if it is moved from `( -4, 6 )` to `( 7 , -4 )`?
  
• How do I use the limit definition of derivative to find `f'(x)` for `f(x)=x^3-2` ?
  
• How do you differentiate `f(x)= (x+2)/ (x- 7 )` using the quotient rule?
  
• How to calculate this? `int_0^1 log(1-x)/xdx`
  
• How do you find a linear approximation to `root(4)(84)` ?
  
• Vectors Please Help ( What is the direction of vector A + vector B?)
  
• Question #ae166
  
• Simple integral: `int {-3x+5}/{x^2-2x+5}dx=?`
  
• `lim_(x to 0) sin^5(x)/ (x^2+x) sin(x^4)` how should i solve it?
  
• Question #5f724
  
• What are the different types of spiral galaxies besides barred?
  
• How do you write the partial fraction decomposition of the rational expression `10/[(x-1)(x^2+9)]`?
  
• Question #6abef
  
• A triangle has sides A, B, and C. Sides A and B are of lengths `8` and `1`, respectively, and the angle between A and B is `(5pi)/8`. What is the length of side C?
  
• How do you find the vertical, horizontal or slant asymptotes for `y = e^x (1-x^2)`?
  
• How do you find the local extrema for `y=sqrtx/(x-5)`?
  
• How do you use the integral test to determine if `sum_(n=3)^(oo) 1/(nlnnln(lnn))` is convergent or divergent?
  
• Stuck with physics ?
  
• How do you find the interval of convergence `Sigma 2x^n` from `n=[0,oo)`?
  
• Find the equation of the tangent line to the curve `y=x^4+2 e^x` at the point `(0,2)`.?
  
• How do you implicitly differentiate `y= (x-y^2) e^(xy)`?
  
• What is the derivative of x^(10x)?
  
• Question #4886a
  
• How do you integrate `\int \frac{ d x } { 9x ^ { 2} - 16}`?
  
• Lim x->0 tan^-1x/x solve?
  
• Question #57cc0
  
• What is a polar plot?
  
• Integration by parts for definite integrals?
  
• Question #61e49
  
• What is `lim_(x to pi) (sin3x)/(sin2x)`?
  
• How do you test the series `Sigma (2^n(n!))/n^n` from `n=[1,oo)` by the ratio test?
  
• How to prove equation of kinetic energy (KE = 1/2mv^2)?
  
• Can someone help me with these two continuous function problems? Information is in the pictures.
  
• What is the equation of the line tangent to `f(x)=2/(4 − x)` at `x=p3`?
  
• Question #0e707
  
• How do you find vertical, horizontal and oblique asymptotes for `(x^2)/(x-1)`?
  
• Question #268d4
  
• How do you solve `3^ { 7x } = 3.3`?
  
• How do you solve `\frac { 6} { x } = \frac { 4} { 3x } + 1`?
  
• Question #27793
  
• How do you divide `\frac { 5a ^ { 2} + 49a - 10} { 14a ^ { 2} + 30a + 4} \div \frac { 5a ^ { 2} - 51a + 10} { 14a ^ { 2} + 30a + 4}`?
  
• How do you use the definition of a derivative to find f' given `f(x)=1/x^2` at x=1?
  
• How do you find the tangent lines of parametric curves?
  
• How do you solve `\log _ { 8} 2+ \log _ { 8} 2x ^ { 2} = \log _ { 8} 64`?
  
• In order to conduct an experiment, five students are randomly selected from a class of 20. How many different groups of five students are possible?
  
• I don't get my mistake on how to solve `2int (1)/(x^2-x+1)dx`, can you help me?
  
• Can I get some help finding the x - intercept please? Thanks!
  
• Question #f37ca
  
• Does the series `sum_{n=1} ^oo (2)/(n^2sqrtn)` converge or diverge?
  
• Question #0c06b
  
• How do you apply the ratio test to determine if `sum_(n=1)^oo 3^n` is convergent to divergent?
  
• What is the equation of the line normal to `f(x)=(x-1)(x+2)` at `x=0`?
  
• Calculate the area between the curve y=3x-x^2 and the x axis between x=10 and x= 6?
  
• Question #f0549
  
• Solve `2tan^2xsinx-tan^2x=0`, if `x in[0^@,360^@]`?
  
• Question #59763
  
• How do you Find exponential decay rate?
  
• How do you solve this system of equations: `y= \sqrt { 2x + 1} and y = \sqrt { 3- 4x }`?
  
• What is `f(x) = int 3x-2cscx dx` if `f((5pi)/4) = 0`?
  
• How do you combine the expression 5√8x^3-x√50x?
  
• How do you differentiate `f(t)= sqrt(ln(t)) / (-4t-6)^2` using the quotient rule?
  
• How do you find the integral of `f(x)=cos^2(x^2)` using integration by parts?
  
• Answer all with working out please?
  
• Question #87a05
  
• How do you evaluate the definite integral `int(5x^(1/3))dx` from `[-2,2]`?
  
• What are is the probability of picking a number less than 4 from a deck of cards?
  
• Question #1da1c
  
• How do you find the power series for `f(x)=1/(1+x^2)^2` and determine its radius of convergence?
  
• How do find `int (x^2) /( x^2 + 4) dx` ?
  
• Question #f2bce
  
• Question #c38d7
  
• Question #62823
  
• Question #b6028
  
• How do you integrate `int t(2t+7)^(1/3)` by integration by parts method?
  
• Question #a685f
  
• Write seven terms of the Fourier series given the following coefficients?
  
• How do you differentiate `g(x) = (2sinx -e^x) ( 2x-x^2)` using the product rule?
  
• Evaluate the limit? `lim_(x->0) (e^x-1-x-1/2x^2)/x^3`
  
• Question #94b54
  
• What is the average speed of an object that is still at `t=0` and accelerates at a rate of `a(t) = 36-t^2` from `t in [2, 6]`?
  
• Question #df9f8
  
• How do you use the chain rule to differentiate `tan(ln(4x))`?
  
• What is the derivative of this function `y=csc^-1(4x^2)`?
  
• How do you solve `3x +9-7x = 2(x 6)`?
  
• How do you use implicit differentiation to find `(dy)/(dx)` given `1=3x+2x^2y^2`?
  
• How do you graph `f(x)=16-1/4x^2` and identify the x intercepts, vertex?
  
• What are the values and types of the critical points, if any, of `f(x,y) = x(2-x-y)`?
  
• Energy is neither created nor destroyed,can only be changed from one form to another. Then which form of energy is converted into gravitational energy?Gravity is a form of energy, right?
  
• Does light have mass?
  
• Question #eb036
  
• How do you solve the system of equations `6x - 3y = 12` and `- 5x + 3y = - 5`?
  
• Find all of the points on the curve `y = x^3 + 5x^2` where the tangent line is parallel to the line `y = 11x − π`.?
  
• How do you integrate `int cos^3(3x)dx`?
  
• Next