क्लास टेंथ चैप्टर नंबर 5 एपीके मुझे सारे फार्मूले चाहिएचैप्टर नंबर 5 ऑफ़ मैथ्स क्लास 10th फार्मूला
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The n'th term of an A.P.
tn = a+(n-1)d
Sum of n terms in A.P.
Sn = n/2 [2a + (n -1)d]
Sum of all terms in a finite A.P.
S = n/2(a + l)
here 'l' means last term
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