Question

Sin(-100pi)
Cis 3pi/4
Sin 11pi/6​

Answer 1

Răspuns:

0

?? probabil sin nu Cis, caz in care e √2/2

-1/2

Explicație pas cu pas:

sin (kπ)=0, k∈Z, deci si (-100π)=0

sin (3π/4) =sin (π-3π/4)=sin(π/4) =√2/2

sin(11π/6)=sin(2π-π/6)=sin(-π/6)=-sin(π/6)=-1/2