tell 12th one please
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= (3/4 )^-4 ×4^-4×1/3^-4×(7/3)^-1
= 4/3^4×1/4^4×3^4×3/7
first 3 terms will be cancelled
therefore
=3/7
= 4/3^4×1/4^4×3^4×3/7
first 3 terms will be cancelled
therefore
=3/7
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