Answer:
x = y = 50°
Step-by-step explanation:
x = 50
Corresponding angles
y = 50
Alternate angles
1.07 PER BAR 4.28 DIVIDED BY 4
cos3x
y" - y' + 9y = 3 sin 3x
here will be replaced by where is coefficient of x
y=cos3x
hence Particular solution is cos3x
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