1.

The 17th term of the AP: 6,9, 12,15..........is=?​

Answer»

\huge\mathbb{SOLUTION:-}

Formula used :-

\bigstar{\sf{\boxed{\sf{T_n=a+(n-1)d}}}}

  • Here :-

\sf \bullet a=6\:\:\:\bullet d=9-6= 3\\ \sf \:\: \bullet\: n=17

Now

\sf\underline{\purple{\:\:\:A.T.Q\:\:\:}}

\sf:\implies T_n=a+(n-1)d\\ \\ \sf:\implies T_{17}=6+(17-1)\times 3\\ \\ \sf:\implies T_{17}= 6+16\times 3\\ \\ \sf:\implies T_{17}=6+48\\ \\ \sf:\implies T_{17}= <klux>54</klux>

So the 17TH Term of GIVEN AP is 54


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