(-1/16)^17*(-3)^18*(-2)^19
1个回答
(-1/16)^17=-2^(-4*17)=-2^(-68)
(-3)^18=3^18
(-2)^19=-2^19
所以
原式=2^(-68+19)*3^18=2^(-49)*3^18
相关问题
20-19+18-17+16-15+…+2-1=______.
(25/18+16/19)*1/8+17/19
(1+1/16+1/17+1/18)x(1/16+1/17+1/18+1/19)-(1+1/16+1/17+1/18+1
16.17.18.19.
1.19,4,18,3,16,1,17,( 5 4 3 22.3/5,3/5,2/3,3/4,( 17/20 19/20
20²-19²+18²-17²+16²-15²+2²
计算:20+19-18-17+16+15-14-13+…+4+3-2-1.
计算:20+19-18-17+16+15-14-13+…+4+3-2-1.
把16.17.18.19
15,16,17,18,19