[tex]\bf \textit{exponential form of a logarithm}
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log_a b=y \implies a^y= b\qquad\qquad
% exponential notation 2nd form
a^y= b\implies log_a b=y \\\\
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4^7=16384\qquad \boxed{16384=2^{14}}\qquad 4^7=2^{14}\implies log_2(4^7)=14[/tex]
