X-y=-7
2x+y=-2
x=-7+y
2x+y=-2
2(-7+y)+y=-2
y=4
2x+4=-2
x=-3
Ответ: 4; -3.
10) (6a)² : a⁷ * a⁵ = 36a² : a⁷ * a⁵ = 36 a⁰ = 36 * 1 = 36
11) ⁵√10 * ⁵√16 : ⁵√5 = ⁵√(10*16: 5 = ⁵√32 = ⁵√2⁵ = 2
12) ⁹√(√m) : √16(⁹√m) = ¹⁸√ m : 4√¹⁸ m = 1/4 = 0,25
1
f(x)=xe^x+e^(x²) f(1)=e+e=2e
f`(x)=e^x+x*e^x+2x*e^x² f`(1)=e+e+2e=4e
2
f`(x)=2x/3*cosx-x²/3*sinx+1/2√x
3
4/3*x√x +C
4
f`(x)=6x*(2x²+3)+4x*(3x²+1)=12x³+18x+12x³+4x=24x³+22x