Jika sin x=0.1 maka sin (x+1/2π)+cos(π+x)=
Matematika
rahmwa
Pertanyaan
Jika sin x=0.1 maka sin (x+1/2π)+cos(π+x)=
1 Jawaban
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1. Jawaban neverhaveaname
sin(x+0.5π)=cosx
cos(π+x)=-cosx
sin(x+0.5π)+cos(π+x)=cosx-cosx=0