How to do this following "Induction sum"?
SUM (-1/2)^j = (2^n+1 + (-1)^n)/ 3. 2^n
How do we remove the "summation" sign here? Also, how to go about proving it by using "induction"?
Thanks for you reply!
Yes, you have to write the code for each formula. See this thread.Also, how to get the symbols like you are using? Do we have to write the code for that?
As , we choose as the common denominator. To make appear at the denominator of the first fraction, we multiply it by . For a similar reason, we multiply the second fraction by .
Otherwise, one can do this as follows :