Question 1198678
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<pre>

The given is a function  y = {{{log(a,(x))}}}  with the unknown value  " a "  as a base of logarithm.


They want you find the value of  " a "  from equation


    1 = {{{log(a,(7))}}}      (indeed,  y=1  when  x=7).


Obviously, a = 7.


<U>ANSWER</U>.  a = 7.
</pre>

Solved.