find arithmatic progression - 27,23,19........-65
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arithematic progression is 27, 23 , 19, ---, ---,------- -65
first term (a ) = 27
common difference = 23-27 = -4
last term (Tn) = -65
now, use formula ,
Tn = a + (n-1)d
-65 = 27 + (n-1 )(-4)
-65 -27 = -4(n-1)
-92 = -4(n-1)
23 = n-1
n = 24
hence, number of terms = 24
now you can write arithmatic progression between 27 and -65
first term (a ) = 27
common difference = 23-27 = -4
last term (Tn) = -65
now, use formula ,
Tn = a + (n-1)d
-65 = 27 + (n-1 )(-4)
-65 -27 = -4(n-1)
-92 = -4(n-1)
23 = n-1
n = 24
hence, number of terms = 24
now you can write arithmatic progression between 27 and -65
vyas03:
in question it is not mentioned to find the number of terms
but according to question, we have to find number of terms
may be. but sum of terms is also possible to ask.
leave it user will tell me what he/she wants. now don't msg here . i am disturbing plz
oh sorry sorry to disturb you
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