Question 1 1, 2, 3, 4
(a) (i) Write down the first four terms of the sequence
ao = -2, an
for n >1 and neN
(n + 1)(n+2)
an-1
3
2, 3​

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit

Ineed to know how to write question one in mathematical terms