package cap3

import "math"

func Ex41(t int) (float64, float64) {
    a, b := math.Pow(3, float64(t))/4, math.Pow(3, float64(t+1))/4
    if t%2 == 0 {
        a -= 0.75
        b += 0.75
    } else {
        a += 0.75
        b -= 0.75
    }

    return a, b
}