Question

linear equations 6th question

Answer 1

let 1/root x = a 

and 1/root y =b

2a+3b=2 ------1equation

and 

4a-9b=-1 --------2equation


2a+3b=2  -------1equation multiply by 9
4a-9a=-1  -------2equation multiply by 3

18a+27b = 18
12a-27a=-3

30a = 15

a= 15/30

a= 1/2 

put the value of a in equation 1

2a+3b=2

(2*1/2) + 3b= 2

1+3b= 2

3b= 2-1

3b=1

b= 1/3

then

1/root x = 1/2

and 1/root y= 1/3

then, root x= 2        and root y =3

then x= 2^2 and y= 3^2

x=4 and y=9 


i hope this will help 

Answer 2

Heyaa

Let 1/root x=a
And then 1/ root y=b


Therefore, equation will be



2a+3b=2—-1
And
4a-9y= -1 ——-2



Therefore as they are two linear equations


We apply elimination [CAN BE APPLIED ANY METHOD BUT AS ITS EASY M APPLYING THIS DUDE]


so,


4a+6b=4 [multiply by 2]
4a-9b= -1

—————
15b=5



So b =1/3


As b=1/ root y ,



Y=9 put in one...


And a = 1/2


So ..



Value of x—->>>>>. 4


And value of y———>>>9



Can bwe solved by putting in the above m mentioned equations.






Hope it helps you..ishu


Any doubt uhh can ask


Thanks..

God bless uh..