plz answer 11th and 13th questions ....on the paper plz ....its urgent ....tomorrow i have pt2 exam ...so plz help me .wrong answer will be reported ...
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vikrantsoni
Q.13=>the 8 term of an ap is 0 a=21 d=-3 an =0 an=a+(n-1)d 0=21+(n-1)(-3) n-1=7 n=8
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a=21
d=-3
an =0
an=a+(n-1)d
0=21+(n-1)(-3)
n-1=7
n=8