Find the sum of the AP: 2, 5,8,.....,182.
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Answered by
56
a+( n-1 )d
182 = 2 + ( n-1 ) 3
182 - 2 = ( n-1 )3
180/3 = n-1
60+1 = n
n= 61
Sn= n/2 (2a+{n-1}d)
Sn= 61/2 ( 2+182 )
Sn= 61/2 ( 184 )
Sn= 61 * 92
Sn= 5612
182 = 2 + ( n-1 ) 3
182 - 2 = ( n-1 )3
180/3 = n-1
60+1 = n
n= 61
Sn= n/2 (2a+{n-1}d)
Sn= 61/2 ( 2+182 )
Sn= 61/2 ( 184 )
Sn= 61 * 92
Sn= 5612
Answered by
9
Answer:
Step-by-step explanation:
Answer is 5612
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