" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
ctg(t)<1
t>π/4+kπ ∧ t<π+kπ, k∈C
2πx>π/4+kπ ∧ 2πx<π+kπ
x>1/8+k/2 ∧ x<1/2+k/2
Odp. x∈(1/8+k/2, 1/2+k/2), k∈C