Jawapan

2015-10-12T19:29:45+08:00
I) r (s +t) + r^2
= -2 (5 +3) + (-2)^2
= -2 (8) + 4
= -16 +4
= -12

ii) 6st + 1 /5r^2s - 2rt
= 6(5)(3) + 1/5(-2)^2(5) - 2(-2)(3)
= 90 + 1/5(4)(5) - (-12)
= 90 + 1/100 +12
= 102 + 0.01
= 102.01
salah yang mana? cuba jelaskan ckit. thanks. :)
6st+ 1/5 r^2 - 2rt = 6(5)(3) + 1/5 (-2)^2(5)- 2 (-2)(3) =90 + 4 + 12 = 106
maaf, sbb lambat sgt reply
oh, yang tengah tu saya silap. thanks ya
no prob