Please sove it step by step
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1) 3/4
B) -4/5
2) -2/3) ²
3) (1/2×1/2) (-3/5×-3/5×-3/5) (-4/9×-4/9×-4/9)
=1/4×-27/125×-64/729
=1728/364500 ans
5) 9×81×243
=177147
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