1. :
a) | e) | ||
) | ) | ||
) | ) | ||
) | ) | ||
) | ) |
2.
:
) a / b ** 2; ) a+b/c+1; ) 1/a*b/c; ) a**b**c/2; ) (a**b)**c/2; ) a/b/c/d*p*q; ) x**y**z/a/b; ) 4/3*3.14*r**3; ) b/sqrt(a*a+b); ) d*c/2/R+a**3; |
)
5*arctg(x)-arctg(y)/4; ) lg(u*(1/3)+sqrt(v)+z); ) ln(y*(-sqrt(abs(x)))); ) abs(x**(y/x)-(y/x)**(1/3)); ) sqrt((x1-x2)**2+(y1-y2)**2); ) exp(abs(x-y))*(tg(z)**2+1)**x; c) lg(sqrt(exp(x-y))+x**abs(y)+z); ) sqrt(exp(a*x)*sin(x)**n)/cos(x)**2; ) sqrt(sin(arctg(u))**2+abs(cos(v))); ) abs(cos(x)+cos(y))**(1+sin(y)**2); |
3. x=1:
) abs(x-3)/ln(exp(3))*2/lg(10000);
: abs(1-3)=2; ln(exp(3))=3; lg(10000)=4;
2/3*2/4=0.33;
)
sign(sqrt(sqrt(x+15)))*2**2**2;
)
int(-2.1)*int(-2.9)/int(2.9)+x;
)
-sqrt(x+3)**2**(sign(x+0.5)*3)+tg(0);
)
lg(x)+cos(x**2-1)*sqrt(x+8)-div(2,5);
)
sign(x-2)*sqrt(int(4.3))/abs(min(2,-1));
)
div(10,x+2)*mod(10,x+6)/max(10,x)*mod(2,5).
[
]
4. , :
) a, b, c (a, b,
c>0) p;
:
sqrt(p*(p-a)*(p-b)*(p-c));
)
a, b, c, d;
)
(x,y) (0,0);
) x ;
)
( );
) (
);
) ,
a1x+b1y+c1=0
a2x+b2y+c2=0 (
).
[
]
5. :
)
x*x+y*y<=9 x=1, y=-2
:
;
) b*b-4*a*c<0 a=2, b=1,
c=-2;
) (a>=1) (a<=2)
a=1.5;
) (a<1) (a>1.2)
a=1.5;
) (mod(a,7)=1) (div(a,7)=1)
a=8;
) ((a>b) (a<9)
(*=4)) a=5, b=4.
[
]
6. ,
:
) x [a,
b]
: (x>=a) (x<=b);
) x [a,
b];
) x [a, b]
[c, d];
) x
[a, b] [c, d];
)
k ;
) k
, ;
)
ai,j
;
)
a1x+b1y+c1=0
a2x+b2y+c2=0 ;
)
a, b, c ,
b;
) a, b, c, d
;
) a,
b, c ;
)
a, b, c ;
)
a1, b1,
c1 a2, b2, c2
;
) (x,y)
A(0,5),
B(5,0) C(1,0);
)
(x,y) ,
A(0,5), B(1,0) C(5,0);
) a, b, c
d .
[
]
7. (x,y) ,
. , ,
.
) (x<=0)
(y>=0) : |
) ((x-2)**2+y*y<=4)
(y>x/2) : |
) (x>=0) (y<=0)
) x+y>=0 ) (x+y>0) (y<0) ) abs(x)+abs(y)>=1 |
) (x*x+y*y<1) (y>x*x);
) (y>=x) (y+x>=0) (y<=1); ) (abs(x)<=1) (y<2); ) (x**2+y**2<4) (x**2+y**2>1); |
8. ,
"" , (x, y)
.
9. a=3, b=5, c=7.
:
) a:=a+1; b:=a+b; c:=a+b; a:=sqrt(a)
: a=3+1=4, b=4+5=9,
c=4+9=13, a= { } 4 =2.
: =2, b=9, c=13;
)
:=a*b+2; b:=b+1; a:=c-b**2; b:=b*a;
)
b:=b+a; c:=c+b; b:=1/b*c;
) p:=c;
c:=b; b:=a; a:=p; c:=a*b*c*p;
) c:=a**(b-3);
b:=b-3; a:=(c+1)/2*b; c:=(a+b)*a;
) x:=a;
a:=b; b:=c; c:=x; a:=sqrt(a+b+c+x-2);
)
b:=(a+c)**2; a:=lg(b**2)**2; c:=c*a*b.
[
]
10. :
) X=(x1, x2)
: x1 , 2
- ;
: c:=x[1]; x[1]:=x[1]+x[2]; x[2]:=c*x[2]
) X=(x1,
x2);
) A(N) i
(1<i<N) ,
,
0.5;
) u = max(x, y, z) + min(x-z, y+z, y,
z);
[
]
11.
:
a) | ||
) | ||
) |
| |
) | ||
) | ||
) | ||
) | r (r>0)
(a,b) |
12. y(x),
:
) x<=-1 y:=1/x**2 x<=2 y:=x*x y:=4 |
) x<-0.5 y:=1/abs(x) x<1 y:=2 y:=1/(x-0.5) |
|
) x<0 y:=1 x<3.14 y:=cos(x) y:=-1 |
) x<-5 y:=-5 x<0 y:=x x<3 y:=2*x y:=6 |
) abs(x)>2 y:=x*x x<0 y:=-2*x x>=1 y:=4 y:=4*x*x |
13. S
:
) S:=128 i 1 4 S:=div(S,2) |
|
) S:=0 i 1 2 j 2 3 S:=S+i+j |
| ||||||||||||||||||||||||||||||
) S:=1; a:=1 i 1 3 S:=S+i*(i+1)*a a:=a+2 |
) i 1 3 S:=0 j 2 3 S:=S+i+j | ||||||||||||||||||||||||||||||||
) S:=1; a:=1 i 1 3 S := S+i j o 2 3 S := S+j |
) i 1 2 S := 0 j o 2 3 k o 1 2 S := S+i+j+k |
14. S
:
) i:=0; S:=0 i<3 i:=i+1; S:=S+i*i |
) S:=0; N:=125 N>0 S:=S+mod(N,10) | S - N:=div(N,10) | N | ||||||||||||||||||||||||||||||||||||
|
| ||||||||||||||||||||||||||||||||||||
) S:=0; i:=1 i>1 S:=S+1/i i:=i-1 |
) :=1; b:=1; S:=0; a<=5 a:=a+b; b:=b+a; S:=S+a+b | ||||||||||||||||||||||||||||||||||||
) S:=0; i:=1; j:=5 i<j S:=S+i*j i:=i+1 j:=j-1 |
) a:=1; b:=1 a+b<10 a:=a+1 b:=b+a S:=a+b |
15. ( .. , .. .. " ", 1989):
) a, b
c; ( ) ,
:
=180o-(+). |
( a,b,c, UgolA,UgolB,UgolC) RadGr,UgolARad | RadGr - . | UgolARad - A ( ) RadGr:=180/3.14 UgolARad:=ArcCos((b*b+c*c-a*a)/(2*b*c)) UgolA:=UgolARad*RadGr UgolB:=ArcSin(b*sin(UgolARad)/a)*RadGr UgolC:=180-(UgolA+UgolB)
) a, b
C ( ) ;
c, A B (
) , :
) a, b c; A ( ), :
)
a A ( )
; ,
:
V=Soc H/2; | ||
) R
r A ( )
;
, :
e)
a ,
A ;
,
d ; :
16. :
) ,
a, b, c ;
:
( a,b,c, Otvet) | a>0, b>0, c>0, a+b>c, a+c>b, b+c>a | Otvet = , | Otvet = , (a=b) (a=c) (b=c) Otvet:= Otvet:=
) a, b c;
) , ;
) a b - , c d - ; , ;
) ; , ;
) , (x, y) , , r1 r2 ;
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