: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!!:):):)