Post your own problems!!


Hard Integrals Post your own problems! Hard Sums / Products Post your own problems! The Proof is Trivial! Hard Limits Post your own problems!
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0 67 27 June 2020
2 119 19 September 2021
1 173 16 February 2021
2 123 11 February 2021
1 149 30 December 2020
1 124 29 December 2020
1 129 29 October 2020
1 100 27 September 2020
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1 105 27 September 2020
1 92 14 September 2020
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1 122 10 September 2020
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1 93 9 September 2020
1 157 8 September 2020
1 77 8 September 2020
1 110 7 September 2020
1 83 7 September 2020
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2 111 6 September 2020
2 97 6 September 2020
2 100 6 September 2020
1 103 6 September 2020
2 111 4 September 2020
1 115 2 September 2020
2 196 1 September 2020
1 91 31 August 2020
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1 105 31 August 2020