Question

4a Square -3b Square /2a Square +5b Square = 12/19 then a:b​

Answer 1

Answer:

4a²-3b²=12

2a²+5b²=19

=> 2a² = 19-5b²

put in 1st equation.

=> 2(19-5b²)-3b²=12

=> 38 - 10b²-3b² =12

=> 13b² = 26

=> b²=2

=> b=√2

put value of b² in

2a²=19-5b²

=> 2a²=19-5(2)

=> 2a²=9

=> a=3/√2

a/b = (3/√2)/√2 = 3/2

Answer 2

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