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

5 is 25 percent of what number
please help :(( find the perimeter of this figure 3dm, image attached
What is the term for the process of buying and selling currencies in order to make a profit from exchange rate fluctuations? A) Arbitrage B) Hedging C) Speculat
What is the acronym for the international organization that sets standards for accounting and financial reporting4 A) GAAP B) IFRS C) IASB D) FASB
solve for (x): First, let’s find the discriminant ((b^2 - 4ac)) to determine the nature of the solutions: Coefficient of (x^2): (a = -1) Coefficient of (x): (b
A mixed economic system combines elements of
How did Tim O’Brien feel about killing a man
Do you agree or disagree with Washington’s view of political parties (factions)? Why/why not?
Please help this is for math
Given f(x)=5x 2 and g(x)=x-6, evaluate (f÷g)(2)