设p,q∈R+且满足㏒9(p)=㏒12(q)=㏒16(p+q),求q/p的值对于正整数a,b,c(a≤b≤c和实数x,y,z,w),若a^x=b^y=c^z=70^w,且1/x+1/y+1/z=1/w,求证a+b=c设0<a<b<1,0<t<1,比较x=a^㏒t(a),y=b^㏒t(b),z=a㏒t(b)这三个
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![设p,q∈R+且满足㏒9(p)=㏒12(q)=㏒16(p+q),求q/p的值对于正整数a,b,c(a≤b≤c和实数x,y,z,w),若a^x=b^y=c^z=70^w,且1/x+1/y+1/z=1/w,求证a+b=c设0<a<b<1,0<t<1,比较x=a^㏒t(a),y=b^㏒t(b),z=a㏒t(b)这三个](/uploads/image/z/6949477-37-7.jpg?t=%E8%AE%BEp%EF%BC%8Cq%E2%88%88R%EF%BC%8B%E4%B8%94%E6%BB%A1%E8%B6%B3%E3%8F%929%EF%BC%88p%EF%BC%89%3D%E3%8F%9212%28q%29%3D%E3%8F%9216%28p%2Bq%29%2C%E6%B1%82q%2Fp%E7%9A%84%E5%80%BC%E5%AF%B9%E4%BA%8E%E6%AD%A3%E6%95%B4%E6%95%B0a%2Cb%2Cc%28a%E2%89%A4b%E2%89%A4c%E5%92%8C%E5%AE%9E%E6%95%B0x%2Cy%2Cz%2Cw%29%EF%BC%8C%E8%8B%A5a%5Ex%3Db%5Ey%3Dc%5Ez%3D70%5Ew%2C%E4%B8%941%2Fx%2B1%2Fy%2B1%2Fz%3D1%2Fw%2C%E6%B1%82%E8%AF%81a%2Bb%3Dc%E8%AE%BE0%EF%BC%9Ca%EF%BC%9Cb%EF%BC%9C1%2C0%EF%BC%9Ct%EF%BC%9C1%2C%E6%AF%94%E8%BE%83x%3Da%5E%E3%8F%92t%28a%29%2Cy%3Db%5E%E3%8F%92t%28b%29%2Cz%3Da%E3%8F%92t%EF%BC%88b%EF%BC%89%E8%BF%99%E4%B8%89%E4%B8%AA)
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