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рационалдык туюнтмаларды өзгөртүү

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

(ху−ух)⋅1х+у\left(\frac{х}{у}-\frac{у}{х}\right)\cdot\frac{1}{х+у}

a)

х−уху\frac{х-у}{ху}

b)

х+уху\frac{х+у}{ху}

c)

хху\frac{х}{ху}

d)

уху\frac{у}{ху}

2.

(ab−ba) ÷(a−b)\left(\frac{a}{b}-\frac{b}{a}\right)^{\ }\div\left(a-b\right)

a)

aba+b\frac{ab}{a+b}

b)

aba−b\frac{ab}{a-b}

c)

a+bab\frac{a+b}{ab}

d)

a−bab\frac{a-b}{ab}

3.

(yx −xy)÷(y+x)\left(\frac{y}{x}\ -\frac{x}{y}\right)\div\left(y+x\right)

a)

yx\frac{y}{x}

b)

y+xyx\frac{y+x}{yx}

c)

y−xyx\frac{y-x}{yx}

d)

xy\frac{x}{y}

4.

n=1 болгондогу туюнтманын маанисин тапкыла (n+1n)2\left(n+\frac{1}{n}\right)^2

a)

4

b)

3

c)

2

d)

1

5.

у+1−1у+2⋅у2−4уу+1-\frac{1}{у+2}\cdot\frac{у^2-4}{у} туюнтмасын рационалдык бөлчөккө өзгөрткүлө

a)

у2+2у\frac{у^2+2}{у}

b)

у2−2у\frac{у^2-2}{у}

c)

у22\frac{у^2}{2}

d)

уу2+2\frac{у}{у^2+2}

6.

pq⋅qp3\frac{p}{q}\cdot\frac{q}{p^3}

a)

pq\frac{p}{q}

b)

1q2\frac{1}{q^2}

c)

1

d)

1p2\frac{1}{p^2}

7.

21789:269+1359

a)

1440

b)

1441

c)

1443

d)

1444

8.

1−11−y1-\frac{1}{1-y}

a)

11−y\frac{1}{1-y}

b)

11+y\frac{1}{1+y}

c)

−y1−y-\frac{y}{1-y}

d)

y1−y\frac{y}{1-y}

9.

140060:y=596, y=?

a)

235

b)

236

c)

234

d)

238

10.

(9765-x):3=3211

a)

130

b)

132

c)

134

d)

136