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if a = log3x2 + (log3 x)2– 10 and xa= 1/x2then x = ?a.

ra , 9 Years ago
Grade 9
anser 1 Answers
Shanmukha

Last Activity: 9 Years ago

From  xa  = 1/x2
         xa+2=1
        a+2=0 
we get a = -2
Now put log3 x=t and sub. a=-2 in the given equation.
You will get a quadratic equation. Find roots and sub. t and find x
ANs: x = 1/81 or 9
 

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