MATH URGENT HELP
a polynomial has several terms, involving powers of a variable. Each term is a constant times a variable raised to some power. The terms are separated by + and -. In each term the factors are multiplied. In the given polynomial, the terms are -7x, -3x^2, 5 The variable is x, t...
Math
what's the problem? just list the elements which satisfy the conditions {x| x∊{2,4,6,8,10}∪{3,6,9}} now remove duplicates {2,3,4,6,8,9,10}
algebra!!!! please help me!!!!
If the coefficients are all rational, then the irrational roots must occur in conjugate pairs. So, the polynomial is (x-(√2+√3+√5)) (x-(√2+√3-√5)) (x-(√2-√3+√5)) (x-(√2-√3-√5)) (x-(-√2+√3+ͩ...
Math
Glad to help. Gotta watch those typos, especially the copy/paste ones!
Math
I took a look at Reiny's solutions. He does assume you are revolving the region, so that's bogus. I see I made a typo. The curves do also intersect at (2,12) If you want algebraic (signed) area, ∫[-1,2] (x^3+x^2) - (2x^2+2x) dx = -9/4 If you want total unsigned a...
Math
Don't think so. f(2) = 4 g(2) = 12 If the answer involves pi, there has to be some rotating involved. That answer must be for some other problem. Check with your instructor. Something's amiss here.
Math
The curves intersect st (-1,0) and (0,0) so the area is ∫[-1,0] (x^3-x^2) - (2x^2+2x) dx = 1/4 x^4 - x^3 - x^2 [-1,0] = -1/4 Was there some rotation involved?
integral calculus
Your substitutions are good, but you dropped something. You should have watched the details: ∫sin(x^2) dx = ∫sin(u) / 2√u du
math
log 0 is not defined If 3^a = 3^b, then a=b. So, 3^3x+1=3^5x-2 3x+1 = 5x-2 2x = 3 x = 3/2
math URGENT thx
Hmmm. The successive differences are 0.6 0.2 0.4 so it's not linear. The simplest curve to fit 4 points is a cubic. That means that one rule to fit the table is 1/40 (5x^3 - 107x^2 + 751x - 1665) Somehow I don't think that's what was intended. Now, if the second va...
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