Answer:

+ sinx + c
Step-by-step explanation:
using the power rule
∫(a
) = 
and ∫cosx = sinx
∫(5x³ + 2cosx )dx
= 
+ 2sinx + c ( c is the constant of integration )
Umm i would say a
hope i helped
Answer:
10.8
Step-by-step explanation:
By sine rule:

Answer:
Step-by-step explanation:
3x=y
X+Y=20
5=x and 15=y are the answer. You can use elimination or substitution or guess and check!