1002.
а) х²+2ху+у²-m²=(x+y)²-m²=(x+y-m)(x+y+m)
б) p²-a²-2ab-b²=p²-(a²+2ab+b²)=p²-(a+b)²=(p-a-b)(p+a+b)
в) b²-c²-8b+16=(b²-8b+16)-c²=(b-4)²-c²=(b-4-c)(b-4+c)
г) 9-c²+a²-6a=(a²-6a+9)-c²=(a-3)²-c²=(a-3-c)(a-3+c)
Y=4-0.5*x^3=4-x^3/2
графиком будет являться кубическая парабола
sin(x+π/3)=-1
x+π/3=3π/2+2πn
x=3π/2-π/3+2πn=(3π*3-2*π)/6+2πn=(9π-2π)/6+2πn=7π/6+2πn.
Ответ: x=7π/6+2πn.
Привет :-)
а) —3⁻⁴ = —(1/3)⁴ = —1/81;
б) —(—5) — 2 = 5 — 2 = 3;
в) (—2)⁻⁴ = (—1/2)⁴ = 1/16;
г) —(—2)⁻⁵ = —(—1/2)⁵ = —(—1/32) = 1/32;
д) 2⁻¹ + 3⁻¹ = (1/2)¹ + (1/3)¹ = 1/2 + 1/3 = 3/6 + 2/6 = 5/6;
е) 2⁻² — 3⁻² = (1/2)² — (1/3)² = 1/4 — 1/9 = 9/36 — 4/36 = 5/36;
ж) 3⁻² + 3⁻³ = (1/3)² + (1/3)³ = 1/9 + 1/27 = 1/9 * (1 + 1/3) = 1/9 * 4/3 = 4/27;
з) 5⁻² — 4⁻² = (1/5)² — (1/4)² = (1/5 — 1/4)(1/5 + 1/4) = (4/20 — 5/20)(4/20 + 5/20) = (—1/20)(9/20) = —9/400.
Y = (ax^2 - b)^3
dy = ( (ax^2 - b)^3 )" dx = ( 3(ax^2 - b)^(3 - 1) * (ax^2 - b)" )dx =
= 3*2ax(ax^2 - b)^2dx = 6ax(ax^2 - b)^2dx
Ответ. 6ax(ax^2 - b)^2dx