which term of series 2,0,2,4.....is 80 and 120
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41 and 61 is the answer
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In the given A.P ;
a = -2
d = 0-2 = 2
Tm = 80
Tn = 120
m&n = ?
Tm = a +(m-1)d
80 = -2+(m-1)×2
82 = 2m -2
m = 42
Tn = a+(n-1)d
120 = -2+(n-1)×2
122/2 = n-1
n = 61+1
n = 62
hence 80 is the 42th term and 120 is the 62th term of given A.P
HOPE THIS HELPED YOU .............!
a = -2
d = 0-2 = 2
Tm = 80
Tn = 120
m&n = ?
Tm = a +(m-1)d
80 = -2+(m-1)×2
82 = 2m -2
m = 42
Tn = a+(n-1)d
120 = -2+(n-1)×2
122/2 = n-1
n = 61+1
n = 62
hence 80 is the 42th term and 120 is the 62th term of given A.P
HOPE THIS HELPED YOU .............!
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