Question

Question 15 please jaldi answer do please

Answer 1

Answer:

hii mate hope my answer finds you in the pink of your health----

Step-by-step explanation:

let, 1/sq.rt x be u and 1/sq.rt y be v.

therefore, equations 1 and 2 becomes respectively--

2u+3v=2----(1)

and, 4u-9v=-1---(2)

now , ---(1)×2->>4u+6v=4---(3)

4u-9v=-1--(2)

subtracting 3 by 2 we get,

15v=5

-->>v5/15=1/3

putting v=1/3 in --(3)

4u+6×(1/3)=4

--->>4u+2=4

---->>4u=4-2=2

--->>u=2/4=1/2.

now v=1/3.

therefore, 1/root y=1/3

implies, root y =3.

implies, y=3^2=9.

and, u=1/2.

therefore, 1/root x=1/2.

implies, root x =2.

implies, x=2^2=4.

hope this helps you

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keep smiling

god bless u