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 ( 95+ )
Otras preguntas
(25 Points) How do taxes support the economy?
Find the unknown angle measure by solving for the given variable Answer choices are: 125, 35, 40, and 140.
Your family values education, but your younger brother is a very poor student and has always been a poor student. his global self-esteem is quite high. how can
Hay _____ miembros en el club de fotografía como en el club de bolos. Question 1 options: tan menos tantos más Question 2 (5 points) El club de español ti
the volume of the Box 4 inches wide 2 inches high and 5 in long is
What is the systematic name of the following compound? Na2o
Select all that apply. Which of the following statements are true about this triangle? This is a right triangle. The hypotenuse of the triangle has a length of
The tacoma narrows bridge collapsed in 1940 when winds caused ____ to build up in the bridge. a friction b a longitudinal wave c a standing wave d a compression
An equation is shown below... 4c+2c=4c+11/2 What value of 2c makes the equation true.
What is the value of a in the equation , when ? 3 15 21 39