За даними рисунку Знайдіть градусну міру кута ABC​

1/5*6^1024-[(6^512+1)(6^256+1)(6^128+1)(6^64+1)(6^32+1)(6^16+1)(6^8+1)(6^4+1)(6²+1)(6+1)(6-1)]/(6-1)=1/5*6^1024-1/5[(6^512+1)(6^256+1)(6^128+1)(6^64+1)(6^32+1)(6^16+1)(6^8+1)(6^4+1)(6²+1)(6²-1)]=
=1/5*6^1024-1/5[(6^512+1)(6^256+1)(6^128+1)(6^64+1)(6^32+1)(6^16+1)(6^8+1)(6^4+1)(6^4-1)]=1/5*6^1024-1/5[(6^512+1)(6^256+1)(6^128+1)(6^64+1)(6^32+1)(6^16+1)(6^8+1)(6^8-1)]=1/5*6^1024-1/5[(6^512+1)(6^256+1)(6^128+1)(6^64+1)(6^32+1)(6^16+1)(6^16-1)=1/5*6^1024-1/5[(6^512+1)(6^256+1)(6^128+1)(6^64+1)(6^32+1)(6^32-1)]=1/5*6^1024-1/5[(6^512+1)(6^256+1)(6^128+1)(6^64+1)(6^64-1)]=1/5*6^1024-1/5[(6^512+1)(6^256+1)(6^128+1)(6^128-1)]=1/5*6^1024-1/5[(6^512+1)(6^256+1)(6^256-1)]=1/5*6^1024-1/5[(6^512+1)(6^512-1)]=1/5*6^1024-1/5(6^1024-1)=1/5*6^1024-1/5*6^1024+1/5=0,2

1 вариант

№1

а) (a-5)²=a²-10a+25                      б) (6a+b)²=36a²+12ab+b²

в) (4a-1)(4a+1)=16a²-1                    в) (a+2b)³=a³+6a²b+6ab²+8b³

№2

(a-6)²-(36+5a)=a²-12a+36-36-5a=a²-17a

№3

а) 3x²+9xy=3x(x+3y)    б) 10x⁵-5x=5x(2x⁴-1)

№4

а) (a+3)-2(a+3)=(a+3)(1-2)=-1(a+3)  б) ax-ay+5x-5y=a(x-y)+5(x-y)=(x-y)(a+5)

                              в) a²+4ab+4b²=(a+2b)²=(a+2b)(a+2b)

№5

                                     а) (y²-2a)(2a+y²)=y⁴-4a²

                                     б) (3x²+x)²=9x⁴+6x³+x²

№6

а) 4x²y²-9a⁴=(2xy+3a²)(2xy-3a²) б) 25a²-(a+3)²=(5a-a-3)(5a+a+3)=(4a-3)(6a+3)

                               в) 27m³+n³=(3m+n)(9m²-3mn+n²)

№7

а) 9y²-25=0

9y²=25

y²=25/9

y₁,₂=±5/3=±1 2/3

б) (x+2)(x-2)-(x-3)²=-1

x²-4-x²+6x-9=-1

6x=12

x=2

№8

а) 35²-25²=(35-25)(35+25)=10*60=600

б) 299*301=299(300+1)=89700+299=8999