1.

A=4,n=7,d=4 the an is

Answer» 28
an = a + ( n - 1 ) d an = 4 + 6 ( 4 )an = 4 + 24an = 28
Formula of nth term =\xa0Where n is the no. of termd is the common differencea is the first termSubstitute the given values :Hence the value of a is 28.


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