In each of problems, determine intervals in which solutions are sure to exist.

1. y^(4) + 4y"' + 3y = t
2. ty"' + (sin t)y" + 3y = cos t
3. t(t - 1)y^(4) + e^ty" + 4t^2y = 0
4. y"' + ty" + t^2y' + t^3y = ln t
5. (x-1)y^(4) + (x + 1)y" + (tan x)y = 0
6. (x^2 - 4)y^(6) + x^2y"' + 9y = 0

"princess tower" in dubai is considered the world's tallest residential building, towering to 1 0 1 101 floors! t ( n ) t(n) models the number of tenants living on floor n n of the tower. what does the statement t ( 2 0 ) = t ( c ) t(20)=t(c) mean?

Which statement is true? the given sides and angles cannot be used to show similarity by either the sss or sas similarity theorems. the given sides and angles can be used to show similarity by the sss similarity theorem only. the given sides and angles can be used to show similarity by the sas similarity theorem only. the given sides and angles can be used to show similarity by both the sss and sas similarity theorems.

For how answer my question this will be the last question can you answer in math subject