0, 3 * 7 - 6 = - 3, 9
0, 2 *7 - 5 = - 3, 6
- 3, 6 больше, чем -3, 9.
А)0.2^4/40=(1/5)^4/40=1^4/5^4/40=1^4/5^4*1/40=1/625*40=1/25000
б)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=20
в)1/(-0.3)³=1/-3³/10=1/-3³/10³=1*(-10³/3³=-10³/3³=-1000/27=-37,03
г)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
Задания 12 не видно .......
Q=392: (-196)=-2,q=-2
a4 = a3.q = -784.(-2)=+1568
a5=a4.q=1568.(-2) = - 3136