In Problems 10 and 11, a sequence is defined recursively. Write down the first five terms. 10. a1=3; an=4-an-1
11. a1=1; a2=2; an=-1 *an-2

Step-by-step explanation:

10. a1=3, a2=1, a3=3, a4=1, a5=3

11. a3=2x1=2, a4=2x2=4, a5=4x2=8

hope that helps :)

nlgqer

step-by-step

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.