|BD|=1 birim olsun.
|AD|=sin(90-2x)
|DC|=|BD|=1
|AB|=cos(90-2x)
|DE|=sinx
Eşitlik yazılırsa
sin(90-2x)-1 1-2sin^2(x)-1 -2sin^2(x)
----------------------=---------------------------=------------------------= -sec(x)
sin2x*sinx 2sinx*cosx*sinx 2sin^2(x)*cosx
Cevap A
On Thursday, April 7, 2022 at 6:00:43 AM UTC+3 ahmet kaya wrote: