If Cos(y)=Cos(-1) (y) then?
Posted: Thu Jul 14, 2022 9:29 am
a) (1 – y2)(1 – Cos2 (y))=1
b) (1 – y2)(1 – Cos(y))=1
c) (1 – y2)(1 – Sin2 (y))=1
d) (1 – y2)(1 – Sin(y))=1
b) (1 – y2)(1 – Cos(y))=1
c) (1 – y2)(1 – Sin2 (y))=1
d) (1 – y2)(1 – Sin(y))=1