log6(2x)>2; log1/8x>3; 2^

log6(2x)>2; log1/8x>3; 2^2x>8; 9^3x

1个回答

log6(2x)>2 ==> 2x>6^2 ==> x>18
log1/8x>3 ==>x x8 ==> 2x>log2 8 ==> 2x>3 ==> x>3/2
9^3x 3x 3x x

(log2(3)+log8(9))x(log3(4)+log9(8)+log3(2))
对数计算1.{log(4)（3）+ log(8) (3)} X {log(3)(2)+log(9)(2)}2.{log(
不等式log1/3(x^2-8)>log3(1/2x)
求对数x：（1）log8^16=x;(2)log1/3^9=x.
有关log的数学题①log2(2X+3)=0②log5(X)-1/3log5(8)=0③log2(X)+log4(X)=
log 9 X/Y=1/2(log 3 X - log 3 Y) log 9 X/Y=1/4 3log 3 X =2lo
log(2x)+log(3y)-log(2z) 怎么化简?log3(x^2-2x-6)=2 log(3x+6)=1+lo
1.3log2(x+4)-4log2(3-x)-5log2(x-2) 2.4In(x^2-16)-8[In(x+4)-2
log2 （5x²-8x+4）＞3 和 log1/2 （x-1）≥0
解方程log3 (9^x+8) = x+log3 (3^x+1 + 6)