plzz answer my question fast
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a = 2
d = 2
Sn = n/2 [ 2a +(n-1)d]
S100 = 50 [ 4 + 99 * 2]
S100 = 50 * (4+198)
S100= 50 * 202
S100 = 10100
d = 2
Sn = n/2 [ 2a +(n-1)d]
S100 = 50 [ 4 + 99 * 2]
S100 = 50 * (4+198)
S100= 50 * 202
S100 = 10100
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