samoka
samoka
02-04-2017
Mathematics
contestada
Does anyone can help me to prove that ...
Respuesta :
ghanami
ghanami
02-04-2017
hello :
by identity : cos²(x)+sin²(x) = 1
divide by cos²(x) :
cos²(x) /cos²(x) +sin²(x)cos²(x)/ = 1/cos²(x)
1+sin²(x)cos²(x)/ = 1/cos²(x)
1+ (sin(x)/cos(x))² = 1/cos²(x)
1+tan²(x) = 1/cos²(x)
conclusion :
tan²(x) = 1/cos²(x) -1
Answer Link
VER TODAS LAS RESPUESTAS ( 77+ )
Otras preguntas
Can you evaluate (g ○ f)(0)? Explain why or why not.
in early modern Europe, governments sought to increase national wealth and maintain a favorable balance of trade through government Intervention by advocatingA.
Literacy tests worked to deny the right to vote to African Americans primarily because
Which statement best describes the motion of the dots? a) They are slowing down because less distance is covered per unit of time b) They are speeding up becaus
Widespread anti-Chinese sentiment in the late-1800s resulted in A) native-born Chinese-Americans having their citizenship revoked. B) Congressional action a
Mr.Jizba bought the same number of blue pencils as green pencils, blue pencils come in packs of 5 and green pencils come in packs of 4. What is the least number
The unspoken messages conveyed through your behavior or body movements is _____.
Gothic short stories with two characters
How is Islam related to both Christianity and Judaism? What are the historical origins of Islam?
Which matter exists in the liquid state at room temperature? A. shirt B. honey C. helium D. nebula
RELAXING NOICE
