SAT官方每日一题数学(9.1)
- 2017年09月15日17:07 来源:小站整理
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9.1 SAT官方数学每日一练
Mathematics>Standard Multiple Choice
If w is nonzero, which of the following expressions is equivalent to the expression above?
A:0
B:1
Answer B
EXPLANATION
Choice B is correct. Rewrite the expression using the following fact:
Xm·Xn=X(m+n)
The expression becomes
Proceed using another fact:
The equivalent expression is 1.
难度系数:简单