1.

Find the numbes te ms in eachhe eliwing Aps1 2

Answer»

Here,a=18t1=18,t2=15

d=t2-t1d=15-18d=-3

here,last term or nth term is -47

we know that,

tn=a+(n-1)d............................(formula).

-47=18+(n-1)-3-47=18-3n+3-47=21-3n3n=21+473n=68n=68/3n=22.67

n=>23



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