2×0.4-8×0.4+5×0.4-0.4
0.8-3.2+2-0.4=-0.8
Дальше по аналогии
1).f'(x) = 10x+6
2).f'(x) = 4x^3+4x
3).f'(x) = 5x^4-6x
4).f'(x) = 3x^2+5
5) -6x^2+13
правила : производная суммы - сумма производных
производная степенной функции ( (a^n)' )= n*a^n-1
GL
D=cКвадрат-4bp (квадрат-степень)
1) 2Cos(2x-π/6)+√<span>3 = 0
</span>2Cos(2x-π/6) = -√<span>3
</span> Cos(2x-π/6) = -√<span>3/2
</span> 2x-π/6 = +- arcCos(-√3/2) + 2πk , k ∈Z
2x-π/6 = +-5π/6 +2πk , k ∈ Z
2x = +-5π/6 +2πk + π/6 , k ∈ Z
x = +-5π/12 + πk + π/12, k ∈Z
2) C<span>os(2/3x-1/3) -1=0
C</span><span>os(2/3x-1/3) = 1
</span>2/3x-1/3 = 2πk , k ∈ Z
2/3 х = 1/3 + 2πk , k ∈Z
x = 1/2 + 3πk, k ∈Z
3) 3tg(x+5π<span>/36) +</span>√<span> 3=0
</span>3tg(x+5π/36) = - √<span> 3
</span> tg(x+5π/36) = - √<span> 3/3
</span> х + 5π/36 = -π/6 + πk , k ∈ Z
x =<span>-π/6 + πk - 5</span>π/36 <span> , k ∈ Z</span>
х = -11π/36 + πk , k ∈Z