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  • 0 posts edited
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  • 25 votes cast
Feb
1
revised Rigorous proof that $dx dy=r\ dr\ d\theta$
added 43 characters in body
Feb
1
asked Rigorous proof that $dx dy=r\ dr\ d\theta$
Jan
31
comment Finding the value of this integral $ \int_{-\pi/4}^{\pi/4}{ (\cos{t} + \sqrt{1 + t^2} }\sin^3{t}\cos^3 {t})dt$?
that was sweet. thanks!
Jan
31
accepted Finding the value of this integral $ \int_{-\pi/4}^{\pi/4}{ (\cos{t} + \sqrt{1 + t^2} }\sin^3{t}\cos^3 {t})dt$?
Jan
31
revised Finding the value of this integral $ \int_{-\pi/4}^{\pi/4}{ (\cos{t} + \sqrt{1 + t^2} }\sin^3{t}\cos^3 {t})dt$?
added 251 characters in body
Jan
31
awarded  Custodian
Jan
31
reviewed Approve Finding the value of this integral $ \int_{-\pi/4}^{\pi/4}{ (\cos{t} + \sqrt{1 + t^2} }\sin^3{t}\cos^3 {t})dt$?
Jan
31
asked Finding the value of this integral $ \int_{-\pi/4}^{\pi/4}{ (\cos{t} + \sqrt{1 + t^2} }\sin^3{t}\cos^3 {t})dt$?
Aug
26
awarded  Popular Question
Jun
9
accepted Angle between edge and lateral face of a regular pyramid
Jun
9
answered Angle between edge and lateral face of a regular pyramid
Jun
9
awarded  Tumbleweed
Jun
4
answered “Commutativity” of sums
Jun
4
awarded  Curious
Jun
3
revised For which values of a parameter an equation has one Real root
added 10 characters in body
Jun
3
revised For which values of a parameter an equation has one Real root
added 6 characters in body
Jun
3
asked For which values of a parameter an equation has one Real root
Jun
2
accepted Solving logarithmic equations including x
Jun
2
comment Solving logarithmic equations including x
very neat! thanks!
Jun
2
awarded  Commentator