solve the given ivp using the laplace properties
y"+y = u(t-π)-u(t-2π) y(0) = 0, y'(0) = 1

Find the value of the cosine for angle a

Christine went shopping and bought each of her six six nephews a? gift, either a video costing? $14.95 or a cd costing? $16.88. she spent ? $ 97.42 97.42 on the gifts. how many videos and how many cds did she? buy?

Which triangle congruence postulate or theorem justifies my claim that the steps i made using construction paper and scissors produce an isosceles triangle? was it sss, sas, asa, aas, or hl?