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  • 2^log4(2-根號(hào)3)^2+3^log(2+根號(hào)3)^2

    2^log4(2-根號(hào)3)^2+3^log(2+根號(hào)3)^2
    [(1-log6(3)^2+log6(2)*log6(18)]/log6(4)
    [(1-log6(3))^2+log6(2)*log6(18)]/log6(4)
    數(shù)學(xué)人氣:183 ℃時(shí)間:2019-08-31 14:35:36
    優(yōu)質(zhì)解答
    2^log4(2-√3)^2+3^log9(2+√3)^2
    =[4^(1/2)]^log4(2-√3)^2+[9^(1/2)]^log9(2+√3)^2
    =4^[(1/2)log4(2-√3)^2]+9^[(1/2)*log9(2+√3)^2]
    =4^log4(2-√3)^[2*(1/2)]+9^log9(2+√3)^[2*(1/2)]
    =4^log4(2-√3)+9^log9(2+√3)
    =(2-√3)+(2+√3)
    =4
    {[1-log6(3)]^2+log6(2)*log6(18)}/log6(4)
    ={[log6(6)-log6(3)]^2+log6(2)*log6(18)}/log6(4)
    ={[log6(6/3)]^2+log6(2)*log6(18)}/log6(4)
    ={[log6(2)]^2+log6(2)*log6(18)}/log6(4)
    ={log6(2)*[log6(2)+log6(18)]}/log6(4)
    =[log6(2)*log6(2*18)]/log6(4)
    =[log6(2)*log6(36)]/log6(4)
    =[log6(2)*log6(6^2)]/log6(4)
    =[log6(2)*2*log6(6)]/log6(4)
    =2log6(2)/log6(4)
    =log6(2^2)/log6(4)
    =log6(4)/log6(4)
    =1
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