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seen Oct 22 at 3:16

Oct
21
answered Solve $e^z + e^i = 0$
Oct
21
answered Finding an angle $\theta$ in a complex number
Oct
21
answered Am I going about this wrong? Complex expression to polar form
Oct
21
answered Find the equations of the two circles which pass through the point $(2,0)$ and have both the $y$-axis and the line $y-1=0$ as tangents
Oct
21
answered How to find the equation of lines passing through the origin and perpendicular to the lines $xy-3y^2+y-2x+10=0$
Oct
21
answered Proof of $\arcsin x \le 2\arctan x$?
Oct
21
answered Last 3 digits of $7^{12341}$
Oct
21
answered Evaluating the value of exponential expression
Oct
21
answered Limit as x goes to infinity of this problem?
Oct
21
answered Finding limits without l'Hopital
Oct
19
answered Integration of $4xe^{-1/2}$
Oct
19
answered Verify proof that ${p \choose r} ≡ 0 \pmod p$
Oct
19
answered How to find the exact value of $\tan(\sec^{-1} 4)$?
Oct
19
answered summation and product of sin and cos
Oct
18
answered How to prove that $\gcd(2n+3, 3n+1)$ divides $7$?
Oct
18
answered How to evaluate $\lim_{x \to 0} ( \ln(1 - \sin x) + x)/x^2$ without using l'Hôpital?
Oct
18
answered Finding the limit of ${x+\sqrt{x^2-4x+1}}$ at negative infinity
Oct
18
answered Find all $(h,k)$ such that $2^h \equiv 1 ~(\text{mod}~ 3^k) $
Oct
18
answered Show that if x,y,z are not divisible by 53, then $x^{26}+4y^{26} \neq\ z^{26}$
Oct
18
answered Show that if x,y are and $ x^4y^2+x^2+2x^3y+6x^2y+8 \leq 0 $ then $x \geq -1/6 $