the 7th term of an ap is 4 and common diffrence is -4 what is the first term
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Answered by
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Step-by-step explanation:
t7=4
d=-4
tn=a+(n-1)d
t7=a+(7-1)-4
4=a+(-24)
a=4+24
a=28
Answered by
0
Answer:
28 is the first term of the given AP
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