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= (2+3x)/(3-2x)
g(x) = 2x-1 → g⁻¹(x) = (x+1)/2
(fog)⁻¹ = g⁻¹(f⁻¹(x))
= ((f⁻¹(x))+1)/2
= ((2+3x)/(3-2x) + 1)/2
= (5+x)/(6-4x) ; x ≠ 3/2...............opsi B
23. Q₃ = bi + l.(Ni/4 - F)/f ; bi = 64,5 ; i = 5 ; Ni =(48+24+18+10+8) = 108
F = (48+18+8) = 74
Q₃ = 64,5 + 5.(108 x 3/4 - 74)/24
Q₃ = 64,5 + 5.(81 - 74)/24
Q₃ = 64,5 + 1,46 = 65,96..........................opsi B
24. Rumus Modus:
Mo = b + (b1/(b1 + b2)).p ; b = 160,5 ; b1 = 7 ; b2 = 3 ; p = 5
Mo = 160,5+(7/(7+3)).5
Mo = 160,5+35/10
Mo = 160,5+3,5 = 164..................opsi A