Bonjour J'ai Un Dm De math aider moi Svp Montrè Que:
1+tan²y=1/cos²y
cos² y-sin² y/sin² y+sin y*cosy=1-tan y/tan y
1+cosy/siny=siny/1-cosy
(tany-1/cosy)=1-siny/1+siny
1+tan²y=1/cos²y
cos² y-sin² y/sin² y+sin y*cosy=1-tan y/tan y
1+cosy/siny=siny/1-cosy
(tany-1/cosy)=1-siny/1+siny
More Questions From This User See All
