1)6cos^2x+5sin(p/2+x)=7 2)√2cos(2x-P/5)-1=0 3)cos^2 4x- sin^2 4x+1/√2=0

Question

1)6cos^2x+5sin(p/2+x)=7
2)√2cos(2x-P/5)-1=0
3)cos^2 4x- sin^2 4x+1/√2=0

Comments

p= π=3.14.. ?

Answer 1

Смотреть во вложении

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