- Grade 11 and 12 Mathematics (Moderator: geoffrey)
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- Grade 11 and 12 Mathematics (Moderator: geoffrey)
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.