各位大神log4(3)log9(2)-log1/2(4√32)怎做啊?是不是?
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各位大神log4(3)log9(2)-log1/2(4√32)怎做啊?是不是?
各位大神log4(3)log9(2)-log1/2(4√32)怎做啊?
是不是?
各位大神log4(3)log9(2)-log1/2(4√32)怎做啊?是不是?
log4(3)=lg3/lg4=lg3/2lg2
log9(2)=lg2/lg9=lg2/2lg3
乘起来=1/4
4√32=16√2=(√2)^9=2^(9/2)
log1/2(4√32)=lg16√2/lg1/2=(9/2 lg2)/(-lg2)=-9/2
那么答案是1/4+9/2=19/4
不知道
log4(3)log9(2)-log1/2(4√32)
=lg3/lg4*lg2/lg9-lg(4√32)/lg(1/2) 谁是底数 4、9、1/2为底
=1/4+9/2*lg2/lg2
=1/4+9/2
=19/4
log4(3)log9(2)-log1/2(4√32)
=lg4/lg3*lg9/lg2-lg(1/2)/lg(4√32) 谁是底数 3、2、4√32为底
=4+2/9*lg2/lg2
=4+2/9
=38/9
各位大神log4(3)log9(2)-log1/2(4√32)怎做啊?是不是?
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