01/08/15

how do i find the derivative of 2xe^x^2?
I have an equation based on the principle   lim     f(x)            lim     f'(x) x→x0  g(x)    =    x→x0  g'(x)    lim     sin2x   =    lim     2sinxcosx   =        cos2x lx=0      =   1 x→0 ... more
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01/08/15

Math alg. 2 trig.
Let f(n)=(1/2)1+(1/2)2 +(1/2)3 +...+(1/2)n make a table for f starting with the initial term f(1)=1/2. Find a closed form for f(n).
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01/03/15

Find all values of theta in the interval from 0 to 360 that satisfy the equation 2sin squared theta plus sin theta=1
Find all values of Θ that satisfy in the interval 0≤Θ≤360 that satisfy the equation 2sin2Θ+sinΘ = 1     Having trouble with this homework problem, and my notes don't help. Thank you!
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12/25/14

x-y=5 After doing the re-arrange thing, I get slope =1 or 1/1 and y intercept =5 the book says -5 Which is correct?
Express x-y=5 in slope and y-intercept form then identify slope and y-intercept.
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12/13/14

how to write (0,4) and m = 5 in equation form
how do i write this equation with the given information
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12/04/14

Using Linear Systems
two numbers total-10, and their difference is 4. Find the two numbers.                   ( answer is -3 and -7 but i need help step by step on how they got this answer)
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12/04/14

Use logarithms to solve exponential equations
Solve the exponential by taking the logarithm on both sides. Use a calculator to obtain a decimal approximation, correct to four decimal places, for the... more
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12/04/14

Jackson's age was two fifths of the age he will be 20 years from now 7 years ago. How old is Jackson now?
Whats the answer  
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11/24/14

If sqr(2)cosx-1=(1+sqr3)/2 and sqr(2)cosx+1=(1-sqr3)/2, find the value of cos4x
The answer is -1/2. How do I get this?
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11/21/14

math word solving
At a furniture manufacturer, worker A can assemble a shelving unit in 5 hours. Worker B can assemble the same shelving unit in 3 hours. Which equation can be used to find t, the time it takes for... more
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11/18/14

if a power b=b power a then prove a=b
if a power b=b power a then prove a=b  
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11/15/14

(1-cos2t)/sin^2t = 2cot^2t
could u prove this please  
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11/15/14

Find a linearly independent set of vectors
Find a linearly independent set of vectors that spans that same subspace of R3 as that spanned by the vectors  [3,2,3],[9,8,3],[3,3,0].    The linearly independent set is?
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11/11/14

Give a counterexample to the claim log (s/t) = log s/ log t
Give a counterexample to the claim log (s/t) = log s/ log t
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11/09/14

Find the values of the six trigonometric functions for the angle ?.
Find the values of the six trigonometric functions for the angle θ.sin θ = cos θ = tan θ = csc θ = sec θ = cot θ =  
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11/08/14

Solving Algebraic Fractions
Solve 3/x + 3/2x = 2   Please explain how to answer this question. Thank you :)
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11/07/14

sin(2sec^-1 u/2)
There is a different problem using U substitution that I have been trying to solve for the majority of the day. If someone could walk me through this it would be great. Thank you. 
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11/06/14

simplify . state the non-permissible value
1. 5b²-15b/10b-30     2. 2m+6/2m²-18     simplify and state the non-permissible value(s)
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11/01/14

Given triangle ABC with sides a,b,c, show that the area of the triangle is given by A=(a^2 sinB sinC)/(2sin(B+C))
Need help! 
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10/30/14

find each number
the larger of two numbers is eleven more than twice the smaller number. the sum of the numbers is twenty-nine
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10/30/14

How many segments are formed by 10 collinear points?
How many segments are formed by 10 collinear points? Geometry help, I can't seem to find the answer please help.
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10/30/14

How does multiplying cosA by its inverse isolate A?
Cos does not have any numerical meaning by itself, but cosA has a distinct value. If we multiply that value by its inverse, I can understand how we produce an answer of one. But how does that... more
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10/24/14

Verifying trig. Equations
sin4A=4sinAcosAcos2a
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10/24/14

how do i verify the identity sine 4theta + sine 10theta / cosine 4theta + cosine 10theta = tan 7theta?
how do i verify the identity sine 4theta + sine 10theta / cosine 4theta + cosine 10theta = tan 7theta?
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10/19/14

how do I write an equation with:
-Having  y-intercept 6 and parallel to the x-axis   -Having the x-intercept be -4 and parallel to the y-axis
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