B(1)=-1/6
b(2)=1/2
b(5)-?
q=b(2) / b(1)
q=1/2 : (-1/6) = - 1/2 * 6 = -3
b(5)=-1/2 * (-3)^4 = -1/2 * 81 = -40.5
0.7(2.7-1.4)+0.3(2.7-1.4)
Решение
9a²-16=(3a-4)(3a+4)
<span>f(x)=tg(x-/6)</span>
<span>y = sin x+tg x</span>
<span>y = sin(x)*sin(3x)</span>
<span>y =2tg(x/2)-3tg(x/3)</span>
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