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M
Chem: 84
Eng Ad: 94
Math 2U: 96
Math 3U: 90
PDHPE: 98
Physics: 89
SOR I: 90
Pretty happy overall.
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M
The series T4 + T6 + T8 = -6 is:
a + (a+d) + (a+2d) = -6
So 3a + 3d = -6
Divide by 3:
a+d = -2 and since a+d = T6, T6 = -2
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