1)
https://img803.imageshack.us/img803/...at17042012.jpg
2)
https://img441.imageshack.us/img441/...at17042012.jpg
3)
https://img685.imageshack.us/img685/...at17042012.jpg
1)
https://img585.imageshack.us/img585/...at17042012.jpg
|AB|√2=|AC|
sin²α+cos²α=(√2sinα)2
sin²α+cos²α=2sin²α
cos²α=sin²α
sinα=cosα
45⁰ , 45⁰ , 90⁰
α=45⁰
3)
https://img687.imageshack.us/img687/...t17042012h.jpg
DEC:
3²=4²+2²−2.4.2.cosa
16cosa=16+4−9
cosa=1116
CHG:
cosa=2x
1116=2x
x=3211
Cevaplar için teşekkürler. Elinize emeğinize sağlık hocam