Mẹo What is the way in which different elements are combined or arranged in an artwork?

Thủ Thuật Hướng dẫn What is the way in which different elements are combined or arranged in an artw…

Mẹo How many ways can 3 white 4 red and 1 blue marbles be arranged in a row if marbles of the same Colour are indistinguishable?

Mẹo về How many ways can 3 white 4 red and 1 blue marbles be arranged in a row if marbles of the sa…