Let f(x) = loge (sin x), (0 < x < π) and g(x) = sin-1 (e-x), (x ≥ 0). If α is a positive real number such that a = fog' α and b = fog α, then:"

1
2 + bα + a = 0
2
2 - bα - a = 1
3
2 - bα - a = 0
4
2 + bα - a = - 2α2

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