find the number of terms in ap 100,96,92....12
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l=12,a=100,d=96-100=-4,n=?
l=[a+(n-1)d]
12=100+(n-1)-4
12=100-4n+4
12=104-4n
-4n=12-104
-4n=-92
n=23.
Therefore,no.of terms = 23
l=[a+(n-1)d]
12=100+(n-1)-4
12=100-4n+4
12=104-4n
-4n=12-104
-4n=-92
n=23.
Therefore,no.of terms = 23
lohithanaidu:
Hoo okk
thank you for answer
its my pleasure...
can u explain it once to me
k leave it I got it
ok
Ur formula is wrg buddy
tn=a+(n-1)d
yes,we can use that formula too
ok
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