Log2(18•3/27)=Log2 (2^1)=1 Ответ 1
V(t)=x'(t)=(1/3t³+2/5t²-t+3)'=t²+4/5t-1
v(5)=5²+4/5*5-1=25+4-1=28 (м/с)
<span>(0,2)^х=1/25=0,04</span>⇒x=2
Ответ: х=2
1. (х-5)^2 = х^2 + 25 - 10х.
2. (2-х)^2 = 4 + х^2 - 4х.
3. (4х-у)^2 = 16х^2 + у^2 - 8ху.
4. (у+3х)^2 = у^2 + 9х^2 + 6ху.
5. (3х-4у)^2 = 9х^2 + 16у^2 - 24ху.
6. (6х+2у)^2 = 36х^2 + 4у^2 +24ху.
7. (х-2)^3 = х^3 - 6х^2 + 12х - 8.
8. (3+у)^3 = 27 + 27у + 9у^2 + у^3.