3x + 12 = - 3x + 12
3x + 3x = 12 - 12
6x = 0
x = 0
y = 3*0 + 12 = 12
Ответ
(0; 12)
F(x)=-9cos(2x-4)-45
F(x)=9/2*sin(2x-4)-45x+C
(2\3a-3\4b)(3\4b+2\3a)
(2\3a-2\3a)(3\4b+3\4b)
a*6\8b
Решение4sin^2x-8sinx-5=0sinx = t4t² - 8t - 5 = 0D = 64 + 4*4*5 = 144t₁ = (8 - 12)/8t₁ = - 1/2t₂ = (8 + 12)/8t₂ = 3,5, 3,5 ∉ [ - 1;1] sinx = - 1/2x = (-1)^k * arcsin(- 1/2) + πk, k∈Zx = (-1)^(k + 1) * (π/6) + πk, k∈ZОтбор корнейk=-2; x=-2πk=-1; x=-π
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