Express the following in exponential form:

(a) 3 × 3 × 3 × a × a × a ×a

(b) a × a × b × b × b × c × c × c × c

(c) s × s × t × t × s × s × t

(a) Number of terms of three = 3

Number of terms of a = 4

3 × 3 × 3 × a × a × a ×a = 3³a⁴

(b) Number of terms of a = 2

Number of terms of b = 3

Number of terms of c = 4

a × a × b × b × b × c × c × c × c = a²b³c⁴

(c) Number of terms of s = 4

Number of terms of t = 4

s × s × t × t × s × s × t = s⁴t⁴