an= 4, n=7 ,d = -4 , a=?
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Step-by-step explanation:
an=4,n=7,d=-4,a=-7 because d=-4
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Answer:
an=4
n=7
d=-4
according to question
a+(n-1)d=an
=)a+(7-1)-4=4
=)a+6(-4)=4
=)a-24=4
=)a=4+24
a=28
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