Answer :
from the laws of exponents , we know that ,
= 
And , am × an = a(m+n)
And , am ÷ an = a(m-n)
And , (am)n = a(mn)
So , we have 
× 
× 3-1 × 
= 
× 34 × 
× 
= 
× 34 × 
× 
= 
× 34 × 
= 
×34
× 
= 
= 
= 
= 
= 
∴ 
× 
× 3-1 × 
= 
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