函數(shù)y=2+log2^x,(x>=1)值域是________.
熱心網(wǎng)友
函數(shù)y=2+log2^x,(x=1)值域是________. 因?yàn)閤≥1 ，所以log2(x)≥0所以 y= 2 +log2(x)≥2
熱心網(wǎng)友
[2+log2,+00)
熱心網(wǎng)友
值域?yàn)?[2+log2,+00)
函數(shù)y=2+log2^x,(x>=1)值域是________.
函數(shù)y=2+log2^x,(x=1)值域是________. 因?yàn)閤≥1 ，所以log2(x)≥0所以 y= 2 +log2(x)≥2
[2+log2,+00)
值域?yàn)?[2+log2,+00)