Bob John
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 Jan14 awarded Popular Question Nov4 awarded Popular Question Jul2 awarded Curious Jan14 awarded Popular Question Dec13 awarded Popular Question Oct10 comment Prove that $f$ is onto if and only if $g$ is onto I understand the image, but I don't know how to apply the math behind it. Oct10 comment Prove that $f$ is onto if and only if $g$ is onto How can I find the preimage in $P(A)$? By applying the definition of $g(S)$ for $P(A)$? Oct10 comment Prove that $f$ is onto if and only if $g$ is onto How can I show that $g$ is onto if it's domain is just the power set of $A$? Oct10 asked Prove that $f$ is onto if and only if $g$ is onto Oct9 asked Show that $n$ lines separate the plane into $\frac{(n^2+n+2)}{2}$ regions…Induction! Oct9 comment Prove the $3^n < n!$ for all $n > 6$ So I multiply the RHS by 3? Oct9 asked Prove the $3^n < n!$ for all $n > 6$ Oct8 comment Solving a differential equation given a general solution Can you explain why the product is -5 rather than just 5? Oct7 asked Solving a differential equation given a general solution Oct7 accepted Find the general solution given the complementary solution and particular solution Oct7 accepted Find general solution given one solution Oct7 awarded Scholar Oct7 accepted Trying to understand LMS algorithm Oct7 accepted Find two other linearly independent solutions to the second order differential equation Oct7 accepted Show that $y(t) = t$ and $g(t) = t \ln(t)$ are linearly independent