Answers created by Alvin L.

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• What is `int (sin x)/(cos^2x + 1) dx`?
  
• Find the values of `x` for which the following series is convergent?
  
• How do you solve `6t ^ { 2} = - 4t`?
  
• What is a solution to the differential equation `dy/dt=e^t(y-1)^2`?
  
• How to integrate `int e^x sinx cosx dx` ?
  
• What’s 8 over 1000 as a percentage?
  
• Find all solutions on the interval [0, 2`pi`)? `2sin(2x)-1=0`
  
• How do you solve `3v ^ { 2} - 24v = 0`?
  
• How do you find the vertex for `y = x^2 - 2x`?
  
• A rectangular table is six times as long as it is wide. If the area is `150` `ft^2`, what is the length and the width of the table?
  
• How do you simplify `(sqrt(144x))^6`?
  
• How do you add `2\sqrt { 18} + 11\sqrt { 2}`?
  
• What is the interior angle of a regular 21-gon? (Round to 2 decimal places.)
  
• By what rational number should the product of 9/7 and -35/6 be divided to get 3/5?
  
• How do you determine if the improper integral converges or diverges `int 1 / [sqrt x]` from 0 to infinity?
  
• What is the arclength of `(t-3,t+4)` on `t in [2,4]`?
  
• Integral of `1/sqrt(tanx) dx=`?
  
• How do you solve `-70m + 100> 10`?
  
• How do you find the zeros of `y = 3/2x^2 + 3/2x +9/2` using the quadratic formula?
  
• How do you find the antiderivative of `Cosx/Sin^2x`?
  
• How do you find the critical numbers of `s(t)=3t^4 + 12t^3-6t^2`?
  
• Solve the inequality?
  
• What is the integral of `(ln(xe^x))/x`?
  
• How do you solve `4sqrtx – 7 = 13`?
  
• How many minutes are in 0.1 hour?
  
• How do you solve `-19= - 10+ \frac { n } { 2}`?
  
• Is -3 an irrational number?
  
• How do you solve using the quadratic formula `3x^2 + 4x = 6`?
  
• How do you divide `6\div \frac { 1} { 3}`?
  
• How do you solve `3/8 * 10/7`?
  
• What is the slope of any line perpendicular to the line passing through `(5,0)` and `(-4,-3)`?
  
• How do you evaluate `2( 3) + 12- ( 4\cdot 3)`?
  
• How do you factor `6x^2+6x^3`?
  
• Find complex values of `x = root (3)(343)` ?
  
• How do you solve `e^(2x)-6e^x-16=0`?
  
• How do you factor completely `P(x)= x^3-2x^2+x-2`?
  
• How do you solve `3x^2=48`?
  
• What are the factors of 128?
  
• How do you determine whether the lines for each pair of equations 3x+2y=-5 y=-2/3x+6 are parallel, perpendicular, or neither?
  
• How do you solve the following linear system: `6x+y =3, 2x+3y=5`?
  
• How do you rationalize `(2sqrt5-8)/ (2sqrt5+3)`?
  
• How do you solve `15t+4=49`?
  
• How do you use the Change of Base Formula and a calculator to evaluate the logarithm `log_5 7`?
  
• How do you solve `ln y = 2x + 4`?
  
• How do you solve `log _ 6 ( log _ 2 (5.5x)) = 1`?
  
• How do you find the domain and range of `sqrt(x^2 - 8x +15)`?
  
• How do you find the domain of `7x+4`?
  
• Write the complex number `(-5 - 3i)/(4i)` in standard form?
  
• How to solve this problem step by step with application of integration?
  
• How to solve this problem step by step with application of integration?
  
• What is the corredt answer?
  
• How do you solve `2^ { m + 1} + 9= 44`?
  
• How do you find the limit of `tanx` as `x->pi`?
  
• How do you solve `\frac { f } { 5} = - 4`?
  
• How do you integrate `int sec^-1x` by integration by parts method?
  
• How to solve limit x/e^x without using l'hospital rule?
  
• How to solve this inequation ?
  
• Question #61bb3
  
• Question #ecc3a
  
• How do you use the integral test to determine if `ln2/sqrt2+ln3/sqrt3+ln4/sqrt4+ln5/sqrt5+ln6/sqrt6+...` is convergent or divergent?
  
• Integration of `1/(1+x^3)dx`?
  
• Question #9ddf4
  
• A playing card is chosen from a standard deck of cards (which contains a total of 52 cards) what is the probability of getting a two. a seven or an ace? a) 3/52 b) 3/13 c) 1/13 d) 1
  
• 75% = 45 is out of is what number???
  
• How to integrate `sqrt(x^2+4x)dx` ?
  
• Question #6c70a
  
• Domain of ln(x`e^(x)`+1) ?
  
• What is `f(x) = int e^xcosx-tan^3x+sinx dx` if `f(pi/6) = 1`?
  
• How do you evaluate the integral `int sinhx/(1+coshx)`?
  
• Question #1299f
  
• How to calculate sum of this? `sum_(n=1)^oo(-1)^n n(n-1)x^n`
  
• How to integrate `int x^lnx` ?
  
• How do you find MacLaurin's Formula for `f(x)=sinhx` and use it to approximate `f(1/2)` within 0.01?
  
• Length of the triangle sides?
  
• Question #f550a
  
• Question #57a66
  
• Question #d90f5
  
• What is the integral of `int ((x^2-1)/sqrt(2x-1) )dx`?
  
• How do you integrate `f(x)=(3x^2-x)/((x^2+2)(x-3)(x-7))` using partial fractions?
  
• Question #bfe81
  
• `x^4-4x^3+x^2+4x+1=0`. How to solve for x?
  
• Let `f(x)` be the function `f(x) = 5^x - 5^{-x}.` Is `f(x)` even, odd, or neither ? Prove your result.
  
• Question #27e2b
  
• What is `lim_(x->oo) (e^x-1)/x` ?
  
• Why is the function not differentiable?
  
• Question #0bfd7
  
• How do you find the roots, real and imaginary, of `y= -3x^2 -+5x-2` using the quadratic formula?
  
• How do you find the antiderivative of `(e^x)/(1+e^(2x))`?
  
• Question #f3bd9
  
• Given that `int_0^3f(x)dx=6` and `int_0^2f(x)dx=5`. Show that `int_2^3f(x)dx`. How to do this?
  
• Question #d4732
  
• Question #3de45
  
• How do you find `-\int \cos ( e ^ { u } ) e ^ { 4} d u`?
  
• How do you solve an inequality where one side is a log and the other side does not equal 1?
  
• How do you solve `\frac { 1} { x - 7} + \frac { x + 2} { x - 3} = \frac { 3} { x ^ { 2} - 10x + 21}`?
  
• What is a Taylor expansion of `e^(-2x)` centered at `x=0`?
  
• What are all the possible rational zeros for `f(x)=-6x^3+5x^2-2x+18` and how do you find all zeros?
  
• Question #62fe0
  
• Question #060c5
  
• How do you find the taylor series for `ln(1+x^2)`?
  
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