[4] The infinite product II, (1 + a*) is called the reciprocal product to II,_(1 + ak) if ak 1 + ak = for k > K. This means that ak =- 1 + ak 1 + ak Show that an infinite product converges if and only if its reciprocal product converges. [5] In the above question set ak = -bk and use this to show that if 0 _ bn