С АЛГЕБРОЙ изучите функцию и
постройте график
f (x) = 2sin (x- (π/4))​

1) log₁₂3 + log₁₂4 = log₁₂(3*4) = log₁₂12 = 1
2) log₇98 - log₇2 = log₇(98/2) = log₇49 = 2
3) log₂5-log₂35 + log₂56 = log₂(5/35) + log₂56 = log₂(log₂8 = 3
4) log₁/₃5 - log₁/₃5 + log₁/₃ 9 = log₁/₃9 = -2

1) lg4 + lg250= lg(4*250) = lg1000 = 3
2) log₂6 - log₂ = log₂( = log₂32 = 5
3) (log₁₂4 + log₁₂36)² = (log₁₂144)² = 2² = 4
4) lg13 - lg 130 = lg = lg = -1
5) (log₂13-log₂52)⁵ = (log₂)⁵ = (log₂)⁵ = (-2)⁵ = -32
6) (log₀.₃9 - 2log₀.₃10)⁴ = (log₀.₃9 - log₀.₃100)⁴ = (log₀.₃)⁴ = (log₀.₃0.09)⁴ = 2⁴ = 16

1) log₃x = -1
x = 3⁻¹ = 1/3
2) log₂x = -5
x = 2⁻⁵ = 1/32
3) log₃x = 2
x = 3² = 9
4) log₄x = 3
x = 4³ = 64
5) log₄x = -3
x = 4⁻³ = 1/64
6) log₇x = 0
x = 7° = 1
7) log₁/₇x = 1
x = 1/7
8) log₁/₂x = -3
x = (1/2)⁻³ = 8

1) log₂log₂log₃81 = log₂log₂4 = log₂2 = 1
2) log₂log₃log₁/₃(1/27) = log₂log₃3 = log₂1 = 0
3) log₅125 = 3 = 2
4) log₄log₃81 = log₄4 = 1

1) =(a-2-1)  (a+2+1) =  (a-3) (a+3)                                                                                2) = (4-x-y) (4+x+y)                                                                                                      3) = (5y-6-7) (5y+6+7)= (5y-13) (5y+13)                                                                      4) = (m-7-8) (m+7+8)=(m-15) (m+15)                                                                          5) = (4a-4a-6) (4a+4a+6)= (-6) (8a+6)        
   6) = (x- 2 y (в квадрате ) -x (в кубе )  ) (x + 2y (в квадрате)+x ( в кубе) )