October 2018 2 16 Report
1. diketahui fungsi kuadrat f(x)=x2+3x+(k-1).tentukan nilai k agar fungsi f(x) memotong sumbu X! !

2. tentukan himpunan penyelesaian dari persamaan kuadrat x2-8x+15=0

3. diket
cos alafa° =4/5,sin beta°=15/3,0°
tolong bantuannya

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