Question

can any body solve this please​

Answer 1

Answer:

1). x+y = 4 ; x-y = 2

2).(3x+2)²

3). 1/3 ; 1/8 ; 1/15 ; 1/24 ; 1/35 ; 1/48

Step-by-step explanation:

1.

23x + 29y = 98

29x + 23y = 110

add both eqs:

52x + 52y = 208

divide by 52 : x + y = 4

subtract :

6x - 6y = 12

x - y = 2

2.

9x² - 12x + 4 = 0

(3x)² - 2×(3x)×(2) + 2²

using formula : a² - 2ab + b² = (a + b)²

here, a = 3x and b = 2

(a+b)² = (3x + 2)²

3.

1/n(n+2)

substitute n= 1,2,...,6

six terms :

1/3

1/8

1/15

1/24

1/35

1/48

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