codylloyd1
codylloyd1
26-09-2016
Mathematics
contestada
cos t(sec t - cos t)
simplify the expression
Respuesta :
Аноним
Аноним
26-09-2016
Remember:
sec t=1/cos t
sin²t+cos²t=1 ⇒sin²t=1-cos² t
Therefore:
cos t(sec t- cost)=(cos t* sec t)- cos² t=(cos t * 1/cos t)-cos² t=1-cos²t=sin² t
Answer: cos t(sec t-cos t)=sin² t
Answer Link
VER TODAS LAS RESPUESTAS ( 54+ )
Otras preguntas
(2x - 1/2) ^2 please simplify
Which statements properly describe hackers? Check all that apply. Hackers secretly get into other people’s computers. Hackers make their identities known. Hacke
How do I give 2000 dollars to a charity?
helppppppppppp help help help help help help help
Conflict between the king and his brother could be the cause for its downfall. They took over the Sumerian civilization. Historians know very little about this
Which function is a translation of the parent absolute value function
At a construction site, a stack of bricks weighs 75 kilograms. How much does this stack of bricks weigh, in pounds?
Which of the following is NOT a benefit of cool down activities? A. reduced muscle soreness B. maximal lightheadedness C. injury prevention D. gradually reduced
HELP QUICKKK please !!!!
What system of linear inequalities is shown in the graph?
