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प्रश्न
Write the first five terms of the following sequences whose nth terms are:
an = (−1)n, 2n
उत्तर
an = (−1)n, 2n
for, n = 1
a1 = −2
for n = 2
a2 = 4
for n = 3
a3 = −8
for n = 4
a4 = 16
for n = 5
a5 = −32
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