Question

If 4,x,9 are in GP then x

Answer 1

Answer:

x=+6 or x=-6

Step-by-step explanation:

$\frac{x}{4}=\frac{9}{x}=r$

where r = common ratio of the GP

$x^{2} =9(4)\\x^{2} =36\\x=\sqrt{36}\\ x=+6\\or x=-6$

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