Question

各位数学同志,进来看下这计算题目啊.............很急滴

(-1\4)^4005* 16^ 2003 *是乘号 ^是几次方

3^18 * (-1\9) ^ 8

0.25^9 * 2^20 *25^9 *64^3

Answer 1

(-1\4)^4005* 16^ 2003 =-4^(-4005) *4^4006=-4
3^18 * (-1\9) ^ 8=3^18 *3^(-16)=1
0.25^9 * 2^20 *0.25^9 *64^3=2^(-18)*2^20*2^(-18)*2^18=4

Answer 2

(-1\4)^4005* 16^ 2003=（-1）*(1\4)^4005*4^4006=-4

3^18 * (-1\9) ^ 8=9

0.25^9 * 2^20 *25^9 *64^3=4*(10)^10

Answer 3

(-1\4)^4005* 16^ 2003
=-（1\4)^4005*4^4006
=-(1/4*4)^4005*4
=-4
3^18 * (-1\9) ^ 8
=9^9* (1\9) ^ 8
=9*(9*1/9)^8
=9
0.25^9 * 2^20 *25^9 *64^3
=(1/4)^9*64^3*4^10*25^9
=(1/64)^3*64^3*4(4*25)^9
=(1/64*64)^3*4*100^9
=4*10^18