x-1=2x One solution was found : x = -1 Rearrange: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : ...

Bạn đang xem: X1 + 2x2 +3x3 =9 and x1 + x2 +x3 = 3

If displaystylefleft(x+1 ight)=2x và displaystylegleft(3x ight)=x+6 , how vày you find the value of #f^-1(g(f(13)))3?
displaystylef^-1left(gleft(fleft(13 ight) ight) ight)=16displaystylef^-1left(gleft(fleft(13 ight) ight) ight)3=48(if ...
https://math.stackexchange.com/questions/336133/what-is-the-property-that-allows-52x1-52-to-become-2x1-2
Its a really good question, the thing is that 5^x is injective, so that it is only possible that 5^x = 5^y when x=y. You know that a^b cdot a^c= a^b+c, so when you divide by 5^y we ...
Use gauss Jordan method khổng lồ solve the systems of simultaneous below displaystyle4x-y+3z=11 , displaystyle2x+z=5 , displaystyle2z-3x+y=5 ?
https://socratic.org/questions/use-gauss-jordan-method-to-solve-the-systems-of-simultaneous-below-4x-y-3z-11-2x
The Gauss-Jordan Method uses an Augmented matrix & Elementary Row Operations until an identity matrix is obtained on the left, then the solution is the column vector on the right.Explanation:We ...
It can't be 50\% because P(X_1=X_2)>0 One approach: Consider the three events P(X_1>X_2), P(X_2>X_1) & P(X_1=X_2) , which partition the sample space. There's an obvious connection ...
Find the locus of points M the difference of the squares of whose distances from two given points A & B is equal to a given value c.

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https://math.stackexchange.com/questions/1029717/find-the-locus-of-points-m-the-difference-of-the-squares-of-whose-distances-from
What you have done is "correct so far". But cảnh báo that the problem asked for the geometrical description of a certain set M (may be a parabola, or whatever), while you have ended with an equation ...
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