Answer:
y =
+ 
Step-by-step explanation:
y''- 9 y' + 18 y = t²
solution of ordinary differential equation
using characteristics equation
m² - 9 m + 18 = 0
m² - 3 m - 6 m+ 18 = 0
(m-3)(m-6) = 0
m = 3,6
C.F. = 
now calculating P.I.


hence the complete solution
y = C.F. + P.I.
y =
+ 
Answer:![\frac{20+5\sqrt[]{3} }{13}](https://tex.z-dn.net/?f=%5Cfrac%7B20%2B5%5Csqrt%5B%5D%7B3%7D%20%7D%7B13%7D)
Step-by-step explanation:
Answer:
i think its 358
Step-by-step explanation:
Answer:
33
Step-by-step explanation:
angles on a straight line sum up to 180°
104+x+x+10=180
114+2x=180
2x=180-114
2x=66
x=33