What is the formula for the nth term of the sequence 1,3,9,19,... ?
Ishwarya12:
Is dis an ap?
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33 is the answer 3-1= 2,9-3=6, 19-9=10 so in this 2×1=2 ,2×3 =6 ,2×5=10 like this if we multiply 2×7=14+19=33
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