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alexvinni2011
@alexvinni2011
July 2022
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Помогите решить уровнения,оченьт срочно нужно
1)cosx=pi/2
2)2cosx=-1
3)sin(4x-pi/4)=0
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covapavlova
2) cosx=-1/2
x=+-arccos*1/2+2pi*n n-элемент целых чисел
x=+-(pi-pi/6)+2pi*n
x=+-5pi/6 +2pi*n
3) 4x-pi/4=pi/2 +pi*n
4x=pi/2+pi/4+ pi*n
x=pi/8+ pi/16+ (pi*n)/4
x=3pi/16+ (pi*n)/4
1)x=+-arccos pi/2 +2pi*n
на счет первого не уверена
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Answers & Comments
x=+-arccos*1/2+2pi*n n-элемент целых чисел
x=+-(pi-pi/6)+2pi*n
x=+-5pi/6 +2pi*n
3) 4x-pi/4=pi/2 +pi*n
4x=pi/2+pi/4+ pi*n
x=pi/8+ pi/16+ (pi*n)/4
x=3pi/16+ (pi*n)/4
1)x=+-arccos pi/2 +2pi*n
на счет первого не уверена