Question

F(x) : 6x-5/2x+1
F-1 (x) = ....?

Tlg dibantu ya yg membantu semoga dapat pahala yg berlimpah *amin..

Answer 1

F(x) = (6x - 5) / (2x - 1)
y = (6x - 5)/(2x - 1)
6x - 5 = 2xy - y
6x - 2xy = 5 - y
x( 6 - 2y) = 5 - y
x = (5-y)/(6 -2y)

f⁻¹ (x) = (5 - x)/(6 - 2x) 
atau
f⁻¹ (x) = (x - 5)/ (2x - 6)