What is the sum factor of 3600​

If sin θ=24/25 and 0 less than or equal to θ less than or equal to π/2, find the exact value of tan 2θ. answers; a) -527/336 b) -336/527 c)7/24 d) 24/7

Witch represents the inverse of the function f(x)=1/4x-12

Can someone me out here number 4 plz