lianaperez914 lianaperez914
  • 01-04-2022
  • Mathematics
contestada

4sin(-x)cos(-x)= -2sin2x
true or false

Respuesta :

loneguy
loneguy loneguy
  • 01-04-2022

[tex]\text{L.H.S}\\\\=4\sin(-x) \cos(-x)\\\\=-4\sin x \cos x\\\\=-2 \cdot 2 \sin x \cos x\\\\=-2 \sin 2x\\\\=\text{R.H.S}\\\\\text{The identity is true.}[/tex]

Answer Link

Otras preguntas

which element is shiny and silver colored and compounded with sulfur is bright red
What is the main purpose of the nervous system?
A business woman uses 1/3 of the floor of an office building. She needs to use 5/8 of the floor to expand her business. How much of the space that she needs doe
If we divide the polynomial x4 4x3 2x2 x 4 by x2 3x, what will be the remainder
The music of the Classical era reflects the principles of      A. the splendor of the church.B. extravagance and unpredictability.C. clarity and balance.D. orna
Device management is the process of managing (???????) devices
For two populations to evolve into two species that look different, what must happen?
Karangan kepentingan memilih rakan sebaya yang baik
Three ratios equivalent to 12/28
Why did artisans organize medieval craft guilds