Click to Translate Whole Page to Read and Solve

Κυριακή 30 Μαρτίου 2025

Ημίτονα και Ορίζουσα

Να αποδειχθεί ότι |sin(x+y)sin(2x+y)sin(3x+y)sin(4x+y)sin(5x+y)sin(6x+y)sin(7x+y)sin(8x+y)sin(9x+y)|=0.