fake solution, extraneous solution, solve rational equations, creating a rational equation with fake a solution, math for fun, blackpenredpen,

another logic/math puzzle! blackpenredpen, math for fun,

Story with my students, Dear Paul, square root equations, square both side, blackpenredpen, math for fun,

integral of 1/(x*(1+x^2)^2),
integral of 1/((1+x^2)^2),
integral by partial fraction,
integral by trig sub,
partial fraction with repeated quadratic factors,
Partial fraction vs. Trig sub


blackpenredpen,
math for fun,

what is 0 to the 0th power? , Can the 0^0 approach to 0, 0^0 goes to 1, https://www.youtube.com/watch?v=hjEwb-zfJFM , 0^0 goes to e, https://www.youtube.com/...

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