0. If zero is in any part of a fraction, its zero.
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0/2 is 0. Imagine it like this: I have $0 to give two people - how much can I possibly give each person? Nothing because I have nothing to give.
2x^2 - 8x = -82x^2 - 8x +8 = 0, bring the -8 over to the other side2 (x^2 - 4x + 4) = 0, simplify2 (x - 2) (x - 2) = 0, factor out the equation2 = 0, x - 2 =0, x - 2 =0 , set everything egual to zero and solve for xx = 22=0 does not have an answer because it is invalid or it doesn't have a variable like the rest; 2 does not equal 0.
Integral from 0 to pi 6sin2xdx: integral of 6sin2xdx (-3)cos2x+c. (-3)cos(2 x pi) - (-3)cos(2 x 0) -3 - -3 0
To find the mean, you add all the numbers together and divide by the amount of numbers (in this case, 6). 2+4+2+0+1+2=11. 11 divided by 6 is equivalent to 11 over 6 (11/6), 1 5/6 (one and five sixths), or 1.83333333 with the 3 repeating (draw a line over the 3).
Sin(3pi/2) = Sin(2pi - pi/2) Double angle Trig. Identity. Hence Sin(2pi)Cos(pi/2) - Cos(2pi) Sin(pi/2) Sin(2pi) = 0 Cos(pi/2) = 0 Cos(2pi) = 1 Sin(pi/2) = 1 Substituting 0 x 0 - 1 x 1 = 0 - 1 = -1 The answer!!!!!