kutiracing
29.10.2020 •
Mathematics
If Sn=-80, a1=10, an=-26 what is the value of n?
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Ответ:
So a would times 1 and =10 so it needs to be 1x10 so a is 10 and axn is -26 so n needs to be =2.6
Step-by-step explanation:
Ответ:
It will always be the case when A and B are opposites
Step-by-step explanation:
sin(x) = -sin(-x) so ...
sin(A -A) = (A -A) = sin(A) -sin(A) = 0
That is, the given expression is true when B=-A.