Equation: 20/x^2 -1/x = 1
Multiply all terms by x^2: 20 -x = x^2
Transposing terms: 20 -x -x^2 = 0
Factorizing: (x-4)(-x-5) = 0 => x = 4 or x = -5
Therefore: x = 4 or x = -5
x = -5 or x = 4.
Unfortunately, 2 over 2 minus 1 equals 5 over 6 is just a wrong answer! If it is 2 over 2, minus 1, the answer is that it equals zero. If it is 2, over 2 minus 1, the answer is that it equals 2.
4x2/81 = 1 - 16x2/25100x2 = 25*81 - 16*81x21396x2 = 2025x2 = 2025/1396x = +/- 1.2044, approx.
-- It's the product of (A/4 + b/5) times (A/4 - b/5). -- Its value will depend on the values of 'A' and 'b'. It will change whenever either of them changes.
5 over 8
The "value" of the function at x = 2 is (x+2)/(x-2) so the answer is plus or minus infinity depending on whether x approaches 2 from >2 or <2, respectively.
x equals negative b plus or minus the square root of b squared minus 4bc over 2a
It can do. Depends on the value of x.
By factoring I get x-3 divided by x+3
Unfortunately, 2 over 2 minus 1 equals 5 over 6 is just a wrong answer! If it is 2 over 2, minus 1, the answer is that it equals zero. If it is 2, over 2 minus 1, the answer is that it equals 2.
4x2/81 = 1 - 16x2/25100x2 = 25*81 - 16*81x21396x2 = 2025x2 = 2025/1396x = +/- 1.2044, approx.
-- It's the product of (A/4 + b/5) times (A/4 - b/5). -- Its value will depend on the values of 'A' and 'b'. It will change whenever either of them changes.
It is, as stated, x2 - 5x + 25/4 = 0
pi squared
Multiply both sides by sin(1-cos) and you lose the denominators and get (sin squared) minus 1+cos times 1-cos. Then multiply out (i.e. expand) 1+cos times 1-cos, which will of course give the difference of two squares: 1 - (cos squared). (because the cross terms cancel out.) (This is diff of 2 squares because 1 is the square of 1.) And so you get (sin squared) - (1 - (cos squared)) = (sin squared) + (cos squared) - 1. Then from basic trig we know that (sin squared) + (cos squared) = 1, so this is 0.
find the common multiple of 4 and 480 then minus 4. Answer is 1 over 3 and N squared. Your welcome i am your saviour.
5x lolzz 8)
[(1-4)/9] = [(-3)/9] = -1/3