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Anastase
@Anastase
July 2022
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тригонометрия,решите пожалуйста
2cos([tex] \frac{x}{2} [/tex]+[tex] \frac{3П}{4} [/tex])=-[tex] \sqrt{2} [/tex]
только там где 3/4,рядом с 3 еще должно стоять П
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тригонометрия,решите пожалуйста
2cos(x/2+3
π/4)= -√2
cos(x/2+3π/4)= -√2/2
1) (x/2+3π/4)=(π-π/4)+2πn, n∈Z x=2·2πn=4πn
2) (x/2+3π/4)= - (π-π/4)+2πn, n∈Z x=2·(-3π/2+2πn)= -3πn+4πn
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тригонометрия,решите пожалуйста2cos(x/2+3π/4)= -√2
cos(x/2+3π/4)= -√2/2
1) (x/2+3π/4)=(π-π/4)+2πn, n∈Z x=2·2πn=4πn
2) (x/2+3π/4)= - (π-π/4)+2πn, n∈Z x=2·(-3π/2+2πn)= -3πn+4πn