In an ap if S10 is equal to 35 and s9 is equal to 28 find a10
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Answer:
a = 28.97
d = 1.46
a50 = 100.51
Step-by-step explanation:
we now that ,
sn = n/ 2 [ 2a + ( n-1) d ]
on solving s50 and s9
we get a , and d
by the help of a and d we get a. 50
Step-by-step explanation:
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