Math, asked by sachin8555, 1 year ago

If 15a²+4b²/15a²-4b²=47/7 then find the values of a/b

Answers

Answered by Anonymous
36
➡ Firstly, we have done cross multiplication,

➡ Then we arranged "a²" variable coefficients in Left Hand Side and similarly "b²" variable coefficients in Right Hand Side.

➡ Negative sign is getting removed from both sides.

➡ We got value of a²/b² = 9/25.

➡ So, if a²/b² = 9/25, then without any doubt, a/b will be 3/5.


==================================


⭐ THE SOLUTION TO YOUR ABOVE QUESTION IS MENTIONED IN THE ABOVE PICTURE.

⭐ I HOPE THE ABOVE SOLUTION IS CLEAR TO YOU.

⭐ FEEL FREE TO ASK ME MORE DOUBTS WHICH STILL EXISTS IN YOU.


==================================

✨✨✨ ALWAYS BE BRAINLY ✨✨✨
Attachments:
Answered by roja34
18
(15a²+4b²) / (15a²-4b²) = 47/7

(15a²+4b²)+(15a²-4b²)/(15a²+4b²)-(15-4b²)= (47+7)/(47-7)

(15a²+4b²+15a²-4b²)/(15a²+4b²-15a²-4b²)=54/40

30a²/ 8b²= 54/40

a²/b² = 54×8/40×30

a²/b² = 9/25 ( taking square root)

a/b = 3/5 .


Similar questions