4的24次方乘负0.25的23次方减1=?
问题描述:
4的24次方乘负0.25的23次方减1=?
答
4^24*[-0.25]^23-1
=4*4^23*[-0.25]^23-1
=4*[4*(-0.25)]^23-1
=4*(-1)-1
=-5