Rút gọn A= sin\frac{a}{2} . cos\frac{a}{2}. cos a. cos 2a. cos4a. cos8a. cos16a

Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species

What is the difference between the predicted value and the actual value

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.