Question

If a/4 = 9/a, then

a²=36
4a = 9a
a + 4 = 9 + a
a - 4 = 9 - a

Answer 1

a² = 36

Explanation:

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Answer 2

a² = 36

Explanation:

We are given the equation
`(a)/(4) = (9)/(a)`

Here, we have to simplify the equation as given in options.

Now,

`(a)/(4) = (9)/(a)`

Multiplying both sides with 4a, we get

`(a)/(4) * (4a) = (9)/(a) * (4a)`

Cancelling 4 in the left hand side and cancelling a in the right hand side we get,

⇒ a × a = 9 × 4

⇒ a² = 36

Therefore, the first option is correct. (Answer)