Respuesta :

calculista
we have that
an=10 * 5n---------------> an=50*n

then

for n=1
a1=50*1=50

for n=2
a2=50*2=100

for n=3
a3=50*3=150

for n=4
a4=50*4=200


the answer is
the first four terms are [50,100,150,200]

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