. The sum of 12 terms of the A.P. : - 37,- 33, -29, ... is
1) 245
2) - 180
3) 555
4) 2520
Answers
Answered by
2
Answer:
a= -37
d= 4
n= 12
______________
sum=?
_______________
sum= n/2[2a + (n – 1)d]
put the value in the above formula
therefore option 2 is correct
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