Vereinfachen Sie (1 cos Theta + Sin Theta) / (1+ Cos Theta + Sin Theta)?

Vereinfachen Sie (1 cos Theta + Sin Theta) / (1+ Cos Theta + Sin Theta)?
Anonim

Antworten:

# = sin (Theta) / (1 + cos (Theta)) #

Erläuterung:

# (1-cos (Theta) + Sin (Theta)) / (1 + Cos (Theta) + Sin (Theta)) #

# = (1-cos (theta) + sin (theta)) * (1 + cos (theta) + sin (theta)) / (1 + cos (theta) + sin (Theta)) ^ 2 #

# = ((1 + sin (theta)) ^ 2-cos ^ 2 (theta)) / (1 + cos ^ 2 (theta) + sin ^ 2 (theta) +2 sin (theta) +2 cos (theta) + 2 sin (Theta) cos (Theta)) #

# = ((1 + sin (theta)) ^ 2-cos ^ 2 (theta)) / (2 + 2 sin (theta) +2 cos (theta) + 2 sin (theta) cos (theta)) #

# = ((1 + sin (theta)) ^ 2-cos ^ 2 (theta)) / (2 (1 + cos (theta)) + 2 sin (theta) (1 + cos (theta)) #

# = (1/2) ((1 + sin (Theta)) ^ 2-cos ^ 2 (Theta)) / ((1 + cos (Theta)) (1 + Sin (Theta)) #

# = (1/2) (1 + sin (Theta)) / (1 + cos (Theta)) - (1/2) (cos ^ 2 (Theta)) / ((1 + cos (Theta)) (1 + sin (Theta))) #

# = (1/2) (1 + sin (Theta)) / (1 + cos (Theta)) - (1/2) (1-sin ^ 2 (Theta)) / ((1 + cos (Theta)) (1 + sin (theta))) #

# = (1/2) (1 + sin (Theta)) / (1 + cos (Theta)) - (1/2) ((1-sin (Theta)) * (1 + sin (Theta))) / ((1 + cos (Theta)) (1 + Sin (Theta))) #

# = (1/2) (1 + sin (Theta)) / (1 + cos (Theta)) - (1/2) (1-sin (Theta)) / (1 + cos (Theta)) #

# = sin (Theta) / (1 + cos (Theta)) #