Lex read 7 fewer books than leona how many books did leona read

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?