C. 1
D. V3 - 1
_____
2
E. 1 - V3
_____
2
pembahasan :
absis = x
ordinat = y
y = sin x + cos x maka turunannya :
mp = y1 = cos x - sin x
mp = cos (1/3 π) - sin (1/3π)
(gradien garis p)
mp = cos 60 - sin 60 (1/3 π= 1/3.180 = 60^o)
mp = 1/2 - 1/2 V3