plis bantuin. sama sekali gk ngerti

∫ xⁿ dx =  (xⁿ⁺¹) / n+1  + C
∫ a cosx dx  =  a sinx  + C
∫ a sinx dx   = -a cosx  + C
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a. ∫ x⁴ dx
= x⁵/5 + C

b. ∫ (2x³ + 1) dx
= 2x⁴/4 + x + C
= x⁴/2 + x + C

c. ∫ (2x³ - 7x - 1) dx
= 2x⁴/4 - 7x²/2 - x + C
= x⁴/2 - 7x²/2 - x + C

d. ∫ (6 sinx + cosx) dx
= -6 cosx + sinx + C
= sinx - 6 cosx + C

(2).
5x - y = 4  ==>>   y = 5x - 4  .........(1)
6x - y = 6  ==>>   y = 6x - 6  .........(2)

dari (1) dan (2)
5x - 4 = 6x - 6
6x - 5x - 6 + 4 = 0
x - 2 = 0
x = 2
subtitusikan nilai x = 2 ke pers. (1)
y = 5x - 4
y = 5(2) - 4
y = 10 - 4
y = 6

HP : {2,6}