8.
) =[E-96)
x = cos 55°, y = cos 650, z = cos 175°
>xy + y2 + zx =
1.-3/4 2. 3/4 3. 3/2
4. 1/2
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ehni vadi trigonometry assi v nii kiti
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hahahahaha navkaran bro Shi keha
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