tg 5x+2sin10x=5sin5x 8cos^4-8cos^2x-cosx+1=0 sinx+sin2x=cosx+2cos^2x tg3x+cos6x=1

Question

tg 5x+2sin10x=5sin5x

8cos^4-8cos^2x-cosx+1=0

sinx+sin2x=cosx+2cos^2x

tg3x+cos6x=1

Answer 1

Решение во вложении, надеюсь видно.

 

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