euanmcsparran
euanmcsparran
04-03-2021
Mathematics
contestada
Prove it cotA - tanA = 2cot2A
Respuesta :
cn4685643
cn4685643
04-03-2021
Cora-tana=cosa/sina-sina/cosa
= (Cos^2a_sin^2a) / sina.cosa
= 2 cos2a/sina
= 2cot2a
Answer Link
VER TODAS LAS RESPUESTAS ( 18+ )
Otras preguntas
Which sentence contains an adverb clause? A. Dad will get some tape as soon as the stores open tomorrow. B. That was the book that Grandpa gave Billy in August.
is 4 m greater or less than 400 dm
Which functions have a positive rate of change and which have a negative rate of change? Column A Column B 1. 2x – 3y = 9 A. positive B. negative 2. y = −4x +
Identify the subordinate clause and tell if it is used as a noun, adjective, or adverb. Click on the blue box until the correct answer appears. The 4-H Club is
Please translate the following to French: - The uniform is okay. I like the colours on it, such as the blue on the blazer. - The food here is horrible and overp
With which of these positions would President Calvin Coolidge have agreed?
Which statement does not accurately describe a lasting result of the Crusades? A. Christians and Muslims blamed each other for the costly wars. B. Trade between
While a star is being observed through a telescope, the visible light coming from the star shifts from red to blue. Which is true about this star? I know f
While a star is being observed through a telescope, the visible light coming from the star shifts from red to blue. Which is true about this star? I know f
How did the Arabian Peninsula’s location affect ability to trade? A.Trade was quite widespread because agriculture was so expansive. B.The location was so isol
