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Find value of $x^2+y^2+z^2+w^2$ if

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#linear-algebra #systems-of-equations
115
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Determine the solutions $(x,y,z)$ of the system $3^x + 4^y = 5^x$, $3^y + 4^z = 5^y$, and $3^z + 4^x = 5^z$

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#algebra-precalculus #systems-of-equations #exponential-function
79
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How to express some tangential force in terms of mg

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#algebra-precalculus #systems-of-equations #physics
97
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Problem about maximize profit

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#systems-of-equations
130
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If Ax = b has a solution then (A^2)x = b has a solution?

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#linear-algebra #systems-of-equations
413
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If $Ax = b$ has one solution then $(A^2)x = b$ also has one solution?

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#linear-algebra #systems-of-equations
31
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How to show it is impossible to obtain more than 4 distinct real values for $x$ by solving a system of equations?

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#algebra-precalculus #systems-of-equations
33
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Solving specific system of equations with inequalities

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#inequality #systems-of-equations
63
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Need help solving difficult equation

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#systems-of-equations #chemistry
58
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Name of technique for solving a system of coupled ODEs using a complex combination?

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#ordinary-differential-equations #reference-request #complex-numbers #systems-of-equations
75
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doubt with an equation

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#algebra-precalculus #polynomials #contest-math #systems-of-equations
190
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Find all $a, b, c$ such that $|ax+by+cz| +$ $|bx+cy+az| +$ $|cx+ay+bz| =$ $|x| + |y| + |z|$ holds for all $x,y,z$.

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#systems-of-equations #absolute-value
80
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If $Ax = b$ has many solutions, then $Ax = 0$ has many solutions?

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#linear-algebra #matrices #systems-of-equations
142
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Find the unique value of K for which the system has infinitely many solutions

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#linear-algebra #matrices #systems-of-equations #matrix-equations
134
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How to add slack variables to a system with only equalities to zero?

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#systems-of-equations #linear-programming #simplex

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