log2(x2-x-2)>log2(2x-2)解不等式
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log2(x2-x-2)>log2(2x-2)解不等式
log2(x2-x-2)>log2(2x-2)
解不等式
log2(x2-x-2)>log2(2x-2)解不等式
log2(x2-x-2)>log2(2x-2)
x^-x-2>2x-2>0
x>3
log2(x2-x-2)>log2(2x-2).
则有:
x^2-x-2>2x-2>0.(因为y=f(x)=loga(x)中,a>1时,函数单调增函数,且x>0.)
于是,可求得答案:x>3.
log2(x2-x-2)>log2(2x-2)
因为y=log2x是增函数(a>1为增函数a<1为减函数)
所以x2-x-2>2x-2
x>3
log2(x2-x-2)>log2(2x-2)解不等式
不等式[log2(-x)]2>=log2(x2)的解集是
|2x-log2^x|
|[log2(x)]^2-3log2(x)+1|
化简:(log2(x/4))*(log2(x/2))
不等式log2(x2-x)
log2(2X-1)
log2(x^2)图像
log2(x-2)
log2 (x + 3) + log2(x + 2) = 1log2 (x + 3) + log2(x + 2) = 1
解关于x的不等式,log2(x2-x-2)>log2(2x-2)
不等式log2(x2-x-2)>log2(x+1)的解集为?
log2(x – 2 ) + 2 = log2(5)log2(x – 2 ) + 2 = log2(5)
log2(x – 2 ) + 2 = log2(5)log2(x – 2 ) + 2 = log2(5)
log2 4+log2 (x+2)怎么算?log2 4+log2 (x+2)=log2 (4x+8)
不等式|2x-log2^x|
log2(2x)*log2(x)=2 x=?
f(x)=log2(x/8)*log2(2/x)