Find the sum 3,7,11,... up to 40th term
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Answer:
3250
Step-by-step explanation:
3+7+11+15+19+23+27+31+35+39+43+47+51+55+59+63+67+71+75+79+83+87+91+95+99+103+107+111+115+119+123+127+131+135+139+143+147+151+155+
159 = 3250
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