Вычислите:а)0,2^4/40 б) 1,8/(0,3)^2. В)1/(-0,1)^3 г) 1,6/(0,4)^2

А)0.2^4/40=(1/5)^4/40=1^4/5^4/40=1^4/5^4*1/40=1/625*40=1/25000б)1.8/(0.3)²=9/5/(3/10)²=9/5/1/3/(3/10)²=9*1/5*3²/10²=9/5*3²/10²=9*10²/5*3²=9*100/5*9=100/5=20в)1/(-0.3)³=1/-3³/10=1/-3³/10³=1*(-10³/3³=-10³/3³=-1000/27=-37,03г)1.6/(0.4)²=8/5/(2/5)²=8/5*1/(2/5)²=8*1/5*(2/5)²=8/5*2²/5²=8*5²/5*2²=8*5²/5*2²=8*25/5*4=200/20=10