noyeregal noyeregal
  • 10-04-2021
  • Mathematics
contestada

I want to prove that (2tanx)/(sec^2x)=sin2x.

Respuesta :

devishri1977
devishri1977 devishri1977
  • 10-04-2021

Answer:

Step-by-step explanation:

[tex]LHS = \frac{2 tan x}{Sec^{2} x}\\\\= 2tan x * \frac{1}{Sec^{2}x}\\\\= 2*\frac{Sinx }{Cos x}*Cos^{2}x\\\\= 2Sin x *Cos x\\= Sin 2x[/tex]

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