1.

Find n if the given value of x is the nth term of the given A.P.(i) 25, 50, 75, 100, ...; x = 1000(ii) −1, −3, −5, −7, ...; x = −151(iii) 512, 11, 1612, 22,...; x = 550(iv) 1,2111,3111,4111,..., x = 17111

Answer» Find n if the given value of x is the nth term of the given A.P.



(i) 25, 50, 75, 100, ...; x = 1000



(ii) −1, −3, −5, −7, ...; x = −151



(iii) 512, 11, 1612, 22,...; x = 550



(iv) 1,2111,3111,4111,..., x = 17111


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