lg50-lg5=?1.lg50-lg5=?2.已知函数f(x)=x2+(a-1)x+3是偶函数,则实数a=?3.将派除以6弧度化成度,结果是?
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lg50-lg5=?1.lg50-lg5=?2.已知函数f(x)=x2+(a-1)x+3是偶函数,则实数a=?3.将派除以6弧度化成度,结果是?
lg50-lg5=?
1.lg50-lg5=?
2.已知函数f(x)=x2+(a-1)x+3是偶函数,则实数a=?
3.将派除以6弧度化成度,结果是?
lg50-lg5=?1.lg50-lg5=?2.已知函数f(x)=x2+(a-1)x+3是偶函数,则实数a=?3.将派除以6弧度化成度,结果是?
1,lg(50/5)=lg10=1
2,偶函数满足奇数次方的系数为0,所以a-1=0,a=1
3,2π对应360°,所以π/6=30°
第一题0.7
第二题1
第三题30度
这个不该问,问了就是懒
懒惰怎么学得好数学?
(lg5)^2+lg2×lg50=?
(lg5)^2 + (lg2)*(lg50)=
(lg5)^2+lg2*lg50=
(lg5)²+lg2*lg50=?
(lg5)^2+lg2*lg50
(lg5)²+lg2×lg50
1.(lg5)2次方+lg2*lg50
若 lg5=m 则lg50=?
lg50+lg2*lg5+(lg2)^2=
计算:(lg5)2+lg2*lg50=?
(lg5)的平方+lg2*lg50=多少?
(lg5)²+lg2×lg50=?
lg50+lg2*lg5+lg²2=?
(lg5)^2+lg2·lg50=?求救...
lg2*lg50+lg5*lg20-2lg5*lg2
化简 (lg5)^2+(lg2)lg50
(lg5)^2+lg2*lg50 求值
lg5²+lg2*lg50化简