The minimum number of teeth on pinion to avoid interference is given as: T = 2aw/((1+G((G)+2)sin2φ)^0.5 - 1), where G is the gear ratio. When we substitute G-> infinity for the case of Rack and pinion, we do not get the formula for minimum number of teeth on pinion for Rack & Pinion (T = 2aw/(sin2φ)). Where am I making a mistake?
