{(5^-1×7^2)÷(5^2×7^-4)}^7/2
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Answer:9.8/(0.01041)^7/2
Steps:{1/5*49)÷√(25*1/2401)^7
=(49/5)/√(25/2401)^7
=(49/5)/√(0.01041)^7
=9.8/(0.01041)^7/2
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