题目内容
计算
(1)(log43+log83)(log32+log92)
(2)(
)-2+(1-
)0-(3
)
.
(1)(log43+log83)(log32+log92)
(2)(
| 2 |
| 3 |
| 2 |
| 3 |
| 8 |
| 2 |
| 3 |
计算(每小题(4分),共8分)
(1)(log43+log83)(log32+log92)=(
log23+
log23)(log32+
log32)=
log23×(
log32)=
×
=
.
(2)原式=(
)2+1-(
)
=
+1-(
)3×
=
+1-
=1.
(1)(log43+log83)(log32+log92)=(
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 2 |
| 5 |
| 6 |
| 3 |
| 2 |
| 5 |
| 6 |
| 3 |
| 2 |
| 5 |
| 4 |
(2)原式=(
| 3 |
| 2 |
| 27 |
| 8 |
| 2 |
| 3 |
| 9 |
| 4 |
| 3 |
| 2 |
| 2 |
| 3 |
| 9 |
| 4 |
| 9 |
| 4 |
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