1.3 2-1

:p,q,r,s,

(1)123(2)124(3)1234312(and)

1231

(3)pq

pqpq

312(or)

2123

(3)Pq

pqPq

31333

21

(1)ppp(2)ppppppp(3)p3

pp

41py=sinx2p3

()()

1)

. 2)

3 P21

(1),.(2),(3) .(4).(5) 6

PQ PQ P

().

n n-1 n n+1 x,x pq pq x x pq pq

3:

1.p:

,

p:___________________.

2.

,

__________________.

_1223199975.unknown

_1223200102.unknown

_1223200137.unknown

_1223199787.unknown

3:

1.

,

.

_1223199787.unknown

_1223200262.unknown

2.

,

1.

_1223200348.unknown

_1223200421.unknown

:

1.px

q

0

(A)q (B)p

(C)pq D)pq

2.

.

:________.

3.c>0,p:

R; q:

.

c__________.

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_1205931022.unknown

_1223189493.unknown

_1223189583.unknown

_1223189758.unknown

_1223189554.unknown

_1223189102.unknown

_1205931020.unknown

_1205931021.unknown

_1205931019.unknown

_1172900282.unknown

_1190386018.unknown

_1172900281.unknown

B

(

)(

)

_1223189846.unknown

_1223189852.unknown

_1223189918.unknown

3