Answer the third one
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a+7d=16......(I)
a+15d=8.......(ii)on subtracting we get
-8d=8
d=-1
therefore
a=23
now
an = a+(n-1)d
0=23+(n-1)×-1
-23\-1=n-1
23+1=n
n=24
therefore 24 the term is 0 then 25 term is first negative term
a+15d=8.......(ii)on subtracting we get
-8d=8
d=-1
therefore
a=23
now
an = a+(n-1)d
0=23+(n-1)×-1
-23\-1=n-1
23+1=n
n=24
therefore 24 the term is 0 then 25 term is first negative term
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Is it 10th class question or 9th ???
10th
It's also in 11th
ooo ok
OKK
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Hope it helps regards SR
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