Mathematics

What is the derivative of cos(cos(sin(x))) and what the derivative of tan(sin(2x))

please solve this out because i cant see it especially the one with the half angle identity i dont know when to use the chain rule or when to actually to use the product,sum,quotient , and subtraction

Help with this absolute value? best answer gets 10 points, & I'll answer yours :)

|x| = 0-|x| = 0 means x = 0 or x = -0.But -0 is the same as 0, so the only solution is x = 0.Hope that helps :)-x=0

How to solve Quadratics by Factoring

>. 5k^2+43k-40=8k. Please list the steps. Thank you very much.-5k^2 + 43k - 40 = 8k 5k^2 - 35k - 40 = 0 k^2 - 7k - 8 = 0 two numbers that multiply to equal -8, add to equal -7 1, -8 (k - 8)(k + 1)

Find the limit as x approaches 1 of (sqrt(x)-x^2)/(1-sqrt(x))

I know finding the limit is quite simple but i have been stuck on this problem for a while now and just cant seem to figure it out. I know the answer ends up being 3 but i just cant come to that res

The probability of a male birth is 0.6. In 2000 families of 4 children each:

The probability of a male birth is 0.6. In 2000 families of 4 children each: a)How many would you expect to have at least one girl? b)How many would you expect to have no boys? c)How many would you e

In need of a Algebra expert. Now. Pleaseee. Please -_-!

Graph the system of inequalities. Clearly label the boundary lines. Then use your graph to identify any two points that are solutions to the system. Show and explain your work. {y > 1/4x - 2} {x + y

Help with one precalculus question

2cosx+1=0 for x-2cos x + 1 = 0 Subtract 1 from each side: 2cos x = -1 Divide each side by 2: cos x = -1/2 Take the inverse cosine of both sides: x = arccos(-1/2) x = 120 degrees (2pi/3 radians)

On adding 4 to a number, it becomes a perfect square and if we add 29 to it, it becomes a perfect cube. Find t

Look at your perfect squares and perfect cubes and work backwards. squares: 4916253649 6481 100 cubes: 8 27 64 125 subtract 4 from squares and add 29 until you get a cube 96 + 4 = 100 96 + 29 = 12

How do I do these two math problems

3(y-2)=6(y-1)-3y and 3a+21 = 7-4A-3y-6 = 6y - 6 - 3y 3y-6 = 3y-6 y = whatever you want. There are infinite solutions. 3a + 21 = 7 - 4a 3a + 4a = 7 - 21 7a = -14a = -2-for the first one, you distrib

Need help with Vieta Formulas

I was absent on my last algebra lesson, and we studied the vieta formulas. I understand them very well, but the homework dont make sense: Solve: x1 + x2 + x3 = a(x1)^2 + (x2)^2 + (x3)^2 = a^2(x1)^3 +

What is the probability

1.One light bulb is selected at random from a lot of 100 light bulbs, of which 6% are defective. What is the probability that the light bulb selected is defective? 10pts!-Of the 100 light bulbs, 6%

Help with these 3 math problems please..?(9 grade stuff)

1.If g(x) = 3(x - 2), find the value of x if g(x) = 6.2.If h(x) = 2x + 3, find the value of x if h(x) = 9.3.If g(x) = x^2 + 2, find g(3). Sorry, but i do online school, and they only let us take it 3

Please help me answer this math question about slope!

What is the equation that represents the line passing through the point (1, -4) with a slope of 1/2. Please help me! I am not good at math!-y - y1 = m(x - x1) y - (-4) = (1/2)(x - 1) y + 4 = (1/2)x

Taylor series : binomial series

Using the 3 first terms of the binomial series, approximate the following indefinite integral: (8+x)^1/3 Using the first three terms of power series for the function f(x)=cos x , estimate the followin

More Discrminant help simple A-level

hi, i need help on these. These are not the only questions ive been set, ive been set a lot, so please dont feel like your doing my homework. Can you go through all the working out you do. thanks: 1.