BU SORULARI YAPAMIYORUM BİR TÜRLÜ YARDIMCI OLURSANIZ ÇOOK TEŞEKKÜRLER


1.SORU: x/8=cos²11pi/12+sin²5pi/12 ise x=?

2.SORU:

2cos²pi/13+2sin²12pi/13

tanpi/12+cotpi/12

3.SORU: 1-4sinpi/7×cospi/7×cos5pi/7=?

4.SORU:

sin69-3sin23

cos²(23)-1

5.SORU:

1

cos13pi/8

+

1

sin13pi/8

1)
https://img801.imageshack.us/img801/...at21042012.png

2)
https://img193.imageshack.us/img193/...at21042012.png

3)
https://img850.imageshack.us/img850/...at21042012.jpg

4)
https://img88.imageshack.us/img88/4568/mat21042012.png

5)
https://img844.imageshack.us/img844/...at21042012.png