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The sum to n terms of the series 1 + (1 + 3) + (1 + 3 + 9) + (1 + 3 + 9 + 27)+ .......... is |
Answer» <html><body><p>`(3(3^(n) - <a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>))/4 - 1`<br/>`(3(3^(n) - 1) - 2n)/4`<br/>`(3(3^(n) - 1) - n)/4`<br/>`(2n - 3(3^(n) - n))/4`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html> | |