ПОМОГИТЕ ПОЖАЛУЙСТА! срочно
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3}\frac{x^2-5x+6}{3x^2-9x}=lim_{x->3}\frac{(x-2)(x-3)}{3x(x-3)} = lim_{x->3}\frac{x-2}{3x}=\frac{1}{9} " alt=" lim_{x->3}\frac{x^2-5x+6}{3x^2-9x}=lim_{x->3}\frac{(x-2)(x-3)}{3x(x-3)} = lim_{x->3}\frac{x-2}{3x}=\frac{1}{9} " align="absmiddle" class="latex-formula">
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1) =sin^2a+sin^2a +1-2sin^2a= 1
2)x^2-5x+6=0
D=25-24=1
x1=(5+1)/2= 6/2=3
x2=(5-1)/2=4/2=2
lim(x->3) (x-3)(x-2)/3x(x-3) = lim(x->3) (x-2)/3x = 3-2/3*3= 1/9
3)f'(x) = 1/2√(4x-1) * (4x-1) ' =4/2√(4x-1)