Question

Pls tell me the answer of (ii) one ..... pls make it with proper solution

Answer 1

Answer:

Step-by-step explanation:

Answer 2

let 1/x be a and 1/y be b

1/3a -1/4b=-1

4a-3b=-12.......(multiplying by 12)

20a-15b=-60....(multiplying by 5).........(1)



1/5a+1/2b=4/15

2a+5b=8/3........(multiplying by 10)

6a+15b=8..........(multiplying by 3).......(2)


adding 1 and 2

20a-15b=-60

6a+15b=8

26a=-52

a=-2

6a+15b=8

-12+15b=8

15b=8+12

15b=20

b=4/3

therefore

1/x =-2

-2x=1

x=-1/2

1/y=4/3

4y=3

y=3/4

x= -1/2. y=3/4