Just a quick question. Is it correct to say that $\displaystyle 2^k+2^k=2^(^k^+^1^)$? Many thanks.
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Yes. $\displaystyle 2^k+2^k=2^k(1 + 1) = 2^k\cdot 2=2^{k+1}$. LaTeX hint: you can surround the superscript with curly braces if it consists of more than one symbol.
Yes that's correct.
Great. Thank you.
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