The n th term of an A.P. 5, 2, -1, -4, -7 … is
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Step-by-step explanation:
a=5
d=2-5
d=-3
tn=?
by using formula,
tn=a+(n-1)d
tn=5+(n-1)(-3)
tn=5-3n+3
tn=-3n+5+3
tn=-3n+8
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