Answer:
[tex]\frac{7 \sqrt{130} }{130}[/tex]
Step-by-step explanation:
Using Trigonometric ratio,
sin A = opposite/ hypotenuse
sin A = 7 / √130
By rationalization
sin A =
[tex] \frac{7}{ \sqrt{130} } \times \frac{ \sqrt{130} }{ \sqrt{130} } = \frac{7 \sqrt{130} }{130} [/tex]