Please solve it ..33question.
It's urgent.
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Answered by
0
Step-by-step explanation:
an= a + ( n- 1 ) d
0 = 54 + (n - 1) -3
n=19
Sn= 19/2 × 54
Sn = 513
Answered by
1
Step-by-step explanation:
... a, d and nth term are 54,-3 and 0
.... We know
Nth =a+(n-1)d
54+(n-1) - 3 =0
54-3n+3=0
57-3n=0
-3n=-57
N=57/3
N=19
Now sum
Sn = n/2(2a+(n-1)d)
=19/2(108+(19-1)-3)
=19/2(108-54)
=9.5(54)
Sn =513
X - Deadpool X X - Force
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