题目内容
(1)计算:(-3)0-0
+(
)-2+16-
-8
;
(2)已知a=log32,3b=5,用a,b表示log3
.
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(2)已知a=log32,3b=5,用a,b表示log3
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(1)原式=1-0+4+
-4=
(7分)
(2)∵3b=5∴b=log35
∴log3
=
(1+log32+log35)=
(1+a+b)(14分)
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(2)∵3b=5∴b=log35
∴log3
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