[tex] { – x}^{4} \times { – y}^{4} \div {2}^{ – 4} \times {3}^{ – 4} = {2}^{4} \times {3}^{4} \times \sqrt[4]{5} \div ( { – x}^{ – 3})( { – y}^{ – 3}) \: and \: {x}^{4} + 1 \div {y}^{4} = 125 \div 216 \: and \: 1 \div x + 1 \div y = a \div b \: \: then \: find \: a – b[/tex]
Answer:
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