Hi I need some help simplifying these trigonomic expressions:
1) sinx/tanxcosx
I tried solving this one, i ended up with:
sinx/(sinx/cosx)(cosx)
= sinx (not sure if thats right)
2) cscθtanθsecθ
This
Let I be a neighborhood of x_0 (thats x subscript 0) and let f: I->R be continuous, strictly monotone, and differentiable at x_0. Assume that f (x_0)=0. Use the property: f^(-1)(f(x))=x (thats the inv
^3√(x^-9)
Also, what is this problem?
Simplify by taking roots of the numerator and the denominator.
^3√(729/343)
I am completely stuck on these problems!-CubeRoot (x^(-9))
[x^(-9)]^(1/3)......
A= 1 4 a
5 -4a -25
a -20 25
the rank of A is:
____ for a= _____,
____ for a= _____, and
____ for all other values of a
does anyone have any idea where to start?-first do the transformation to this m
Let f(x) = x^2 for x ≤ 3 andAx + B for x > 3
a) use the definition of the derivative to find A and B so that f (3) exists. Justify your answer
b) Does f (3) exist? Explain.
Thanks guys hope to hear
The question is: For any integer, if n > m > 0
Evaluate 1/(m(m+1)) + 1/((m+1)(m+2)) + ... + 1/((n-1)n) + 1/(n(n+1))
Ive gotten as far as rewriting it as (m-1)!/(m+1)! from m to n, but besides that Im
I have been doing these and I am not getting the answer in the back of the book. Maybe I am choosing the wrong u?
a. Integral of x^2/x^3 +1 dx
b. Integral of sin x/ 1 + cos^2 x dx
I have to do this
You will need the power rule and product rule.-f (x) = [(d/dx) x^11] * h(x) + x^11 * h(x) by the product rule
.......= 11x^10 h(x) + x^11 h(x).
Let x = -1:
f (-1) = 11 * (-1)^10 * h(-1) + (-1)^11 * h
Im having a little trouble with the question below:
A plane flies 11km from an airport on a bearing of 220 degrees, and then flies 15km on a bearing of 340 degrees. How far is the plane from the airp
can you please explain how to do this-3 represents the x, so if the point is true, then 17 must equal 5(3)-2, which is 13. So that point does not lie on the line.-The 3 in point (3, 17) represent x. T
A= k+6 5 -3
k+ 4 k+4 1
k+6 5 k-7
for what values of k is the matrix A not invertible?
i know that the det = 0 for it to not be invertible, but can someone show me the math. i have done this problem m
Hi,
the problem states.
Express cos2π/5 and sin2π/5 in terms of roots of real numbers.
now I know that (cos2pi/5+isin2pi/5)^5=cos2pi+isin2pi=1=… do i go from here?-Note that (cos 2π/5 + i sin 2π/5)
