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seen Oct 29 at 17:18

Oct
6
awarded  Yearling
Sep
30
awarded  Explainer
Sep
27
revised Did I find the period of $\sqrt{1-\sin^2x}$ correctly?
added 1 character in body
Sep
27
reviewed Approve suggested edit on Did I find the period of $\sqrt{1-\sin^2x}$ correctly?
Sep
16
revised Find the Domain of the function: $f(x) = \frac{x^2+2x+3 }{ x^2 -9}$
added 9 characters in body
Jul
12
answered Find $ M > 0$ that for every $x > M$, we get ${{x^2 - 2x} \over {x + 2 \cos x}} >1000$
Jul
6
comment Proving logical equivalence
@Guest For the first equivalence, I used the distributive law while for the second, I used the fact that $P\land \text{ tautology}\equiv P$ (since $R\lor\neg R$ is a tautology).
Jul
6
answered Proving logical equivalence
Jul
2
awarded  Curious
Jun
22
answered Proposed proof of set theoretic result
Jun
16
revised HARD Arithmetic Progression Problem
added 7 characters in body
Jun
16
revised HARD Arithmetic Progression Problem
added 330 characters in body
Jun
16
answered HARD Arithmetic Progression Problem
Jun
14
answered Find the intersections of the functions
Jun
14
comment why$(\forall x \in U, P(x)) \implies (\exists x \in U, P(x))$ is false?
@yunichanyeol Yes, it is a definition. But you should convince yourself that both these definitions make intuitive sense.
Jun
14
answered why$(\forall x \in U, P(x)) \implies (\exists x \in U, P(x))$ is false?
Jun
12
answered Ice Cream Combinatorics
Jun
12
awarded  Nice Answer
Jun
12
answered How many permutations of all the letters in the word ARMADILLO begin with letter A?
Jun
12
answered Intro to Real Analysis