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1. 45 7135.

11.

2.xx, x + 3, x + 6 ..

3.1, 2... i) 2

1. ii) = 1.2...

2= (1).

4.- .

- . - = 1.

5., .

16 ,

2 . .

6. .. :1

2,

1

3,

2

9,

4

27, ... .

7, 8.

7.3

21 216.

.

8. :

i)

+ + + + +

2 3

2 1... ,

ii) 1 + 2+ 32+ 43+ ... +- 1 , 1

9., 2, 3, 2, 3(

1) :

(3- 2) = (2- )2

10.:

i) 20 + 4 +4

5+

4

25+....

ii) 32 + (-8) +2 +

+

1

2....

iii) 1 +( )

1

1

1

12 +

++

+....

iv) + (-) +

2 3

2+ +....

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11. 4