Решите уравнение: 1)cos5x·cos2x+sin5x·sin2x=/2\2    корень 2 разделить на 2 2)cos9x·cos4x-sin9x·sin4x= -/3\2 минус корень 3 разделить на 2 3)cos2x=2cosx-1 4) sin2x-cosx=0
Please enter comments
Please enter your name.
Please enter the correct email address.
You must agree before submitting.

Copyright © 2024 SCHOLAR.TIPS - All rights reserved.