In an Ap if d=4,n=7,a n=4 find the valuu of a
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hence, by putting in the formula we get a=-20.
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D=4
n=7
an=4
So by using an formula
an=a+(n-1)d
4=a+6×4
a=4-24
a=-20
n=7
an=4
So by using an formula
an=a+(n-1)d
4=a+6×4
a=4-24
a=-20
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