Question

if 3x-2y=0 and 5x+2y=0 then x+y=​

Answer 1

Answer:

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Step-by-step explanation:

Answer:

(b) x = 0, y = 0

Step-by-step explanation:

√3x +  2y     =  0          → 1

√5x + 2√2y =  0          → 2

Multiplying eqn. 1 by √2,

√6x + 2√2y = 0       → 3

Now, solving eqn. 3 and 2:

   √6x  +  2√2y   = 0     → 3    [eqn. (3 - 2) ]

(-) √5x  + (-)2√2y =  0    → 2

 ----------------------------------

        √6x - √5x = 0

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⇒   x(√6 - √5) = 0

∴    x = 0

Substituting x in y,

√3x + 2y = 0

√3(0) + 2y = 0

     0 + 2y = 0

            2y = 0

        ⇒   y = 0

Hence, the option is (b) x = 0, y = 0.