:confused:s-1)x=pi/26 ise, (sin4x.cos3x+cos4x.sin3x) / (cos7x.cosx+sin7x.sinx) =? (1)
s-2)sin(x-pi/4) / sin(x+pi/4)=1/2 ise cot x=? (1/3)
s-3)tan x=1/3 ve tan y=-2 ise x+y=??? (135)
Yazdırılabilir görünüm
:confused:s-1)x=pi/26 ise, (sin4x.cos3x+cos4x.sin3x) / (cos7x.cosx+sin7x.sinx) =? (1)
s-2)sin(x-pi/4) / sin(x+pi/4)=1/2 ise cot x=? (1/3)
s-3)tan x=1/3 ve tan y=-2 ise x+y=??? (135)
C-1
sin7x/cos6x=?
13x=pi/2
sin7x=6x ise
sin7x/cos6x=1
C-2
2(sinx.√2/2-cosx.√2/2)=sinx.√2/2+cosx.√2/2
√2sinx-√2cosx=sinx.√2/2+cosx.√2/2
(√2-√2/2)sinx=(√2/2+2)cosx
cosx/sinx=1/3
C-3
tan(x+y)=tanx+tany/1-tanx.tany
ise tan(x+y)=1/3-2/1+2/3=-5/3/5/3=-1 ise
x+y=135 bulunur
teşekkür ederim.duygu çok sağol!!:):):)