(1/4)^-1/2 *16^1/2 - 2^-1 *(1/25)^-1/2 *8^-1/3

Question

(1/4)^-1/2 *16^1/2 - 2^-1 *(1/25)^-1/2 *8^-1/3

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Answer 1

(1/√(1/4))*√16-(1/2)*(1/√(1/25))*(1/∛8)=

√4*4-√25/(2*∛8)=

8-5/(2*2)=8-5/4=8-1 1/4=6 3/4=6,75.

Comments

Можно в виде корней не записывать, просто складывать и перемножать показатели))

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((1

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((1/2)^2)^(-1/2)*(4^2)^(1/2)-2^(-1)*(2^3)^(-1/3)*((1/5)^2)^(-1/2)= 2*4-(1/4)*5= 6 3/4