1.tính a,5^6:5^5+(4/19)^0 b,(3/7)^21:(1-40/49)^3 c,3.(2/3)^3-(-52/3)^0+4/9 d,3^7:365-(5/17)^0 e,(5/2)^13:(1/2+2)^3 f,91/4)^3+(2/27)^0-1/8 g,B=2^3+3.(1/2)^0.(1/2)^2.4+[(-2)^2:1/2]:8 giúp e vs ạ cần gấp:<<

Đáp án + Giải thích các bước giải:

` a,5^6:5^5+(4/19)^0 `

` =5^1 + 1 `

` = 5 + 1 `

` = 6 `

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` b,(3/7)^21:(1-40/49)^3 ` 

` = (3/7)^21 : (3/7^2)^3 `

` = (3/7)^21 : (3/7)^6 `

` = 3/7^27 `

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` c,3 xx (2/3)^3 - (-52/3)^0 +4/9 `

` = 3 xx 8/27 + 1 + 4/9 `

` = 8/9 + 1 + 4/9 `

` = 17/9 + 4/9 `

` = 21/9 `

` = 7/3 `

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` d,3^7:365-(5/17)^0 `

` = 2187 : 365 - 1 `

` = 1822/365 `

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` e,(5/2)^13:(1/2+2)^3 `

` = (5/2)^13 : (5/2)^3 `

` = (5/2)^10 `

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` f,(1/4)^3+(2/27)^0-1/8 `

` = (1/4)^3 + 1 - 1/8 `

` =  1/64 + 1 - 1/8 `

` = 65/64 - 1/8 `

` = 57/64 `

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` g,B=2^3+3.(1/2)^0.(1/2)^2.4+[(-2)^2:1/2]:8 `

` = 8 + 3 xx 1 xx 1/4 xx 4 + [ 4 : 1/2] : 8 `

` = 8 + 3 xx 1/4 xx 4 + 8 : 8 `

` = 8 + 3/4 xx 4 + 1 `

` = 8 + 3 + 1 `

` = 12 `

` color[pink][#Taki] `