dabenavides dabenavides
  • 17-07-2019
  • Mathematics
contestada

cos2a=2cos^2a-1 for all of a
true or false?

Respuesta :

jdoe0001 jdoe0001
  • 17-07-2019

[tex]\bf ~\hspace{10em}\textit{Double Angle Identities}\\\\ sin(2\theta)=2sin(\theta)cos(\theta) ~\hfill cos(2\theta)= \begin{cases} cos^2(\theta)-sin^2(\theta)\\ 1-2sin^2(\theta)\\ \boxed{\bf 2cos^2(\theta)-1} \end{cases} \\\\\\ tan(2\theta)=\cfrac{2tan(\theta)}{1-tan^2(\theta)}[/tex]

well, take a peek at the cos(2θ) identities.

Answer Link

Otras preguntas

The price, p, for different size orders of printed programs for a musical production, n, is given in the table.
Jason is a party planner. In 124 packages, he has a total of 1,860 balloons. If each package has the same number of balloons, how many balloons are there in eac
what is the remainder of 29,107 divided by 37
When a candle burns which forms of energy does the chemical energy in the candle change to
Brand A cereal contains 10 cups of cereal. How many more cups of cereal are in Brand B cereal if Brand B has 30% more cereal?
TIMED help first one!!!!!
I never saw a clearer instance of the opposite impressions that different customs make on people than I observed in the ambassadors of the Anemolians, who came
Are the bacteria that cause bad breath aerobes or anaerobes?
Please help as soon as possible
Can all waves be distorted, deflected, or changed? Explain your response.