Answer it 22
Step-by-step explanation:
4 books make 1 foot since there are 12 inches in a foot so 4 * 5 is 20
There are 20 books in the stack
Answer:
satisfies given homogenous solution and the particular solution is .
Step-by-step explanation:
Given homogeneous equation is,
where t>0 subject to
To verify,
- wheather satisfies given homogenous equation, then both will satisfy that is,
Thus and satisfies (1).
Now the wronskean,
Thus and are solution of (1) .
where
sincce
Hence the result.