GRE

$$(-87)^{8}$$

$$(\frac{1}{87})^{-8}$$

The area of ∆MCQ

The area of ∆NSP

The total number of positive 4-digit integers that can be formed where each digit is in set T and the 4 digits in each 4-digit integer are different from each other

7·6·5·4

4 times the number of integers in set T that are multiples of 4

5 times the number of integers in set T that are multiples of 5

$$\sqrt{( 10^{2m} )}\sqrt{( 10^{2n} )}$$

$$10^{mn}$$

$$(-1)^{n}(-1)^{n+2}$$

1

25000 +道题目

4本备考书籍