Question

Consider the following functions for non-zero positive integers, p and q.

f ( p , q ) = p × p × p × . . . . . . . × p q   t e r m s = p q ; f(p, 1) = p

g ( p , q ) = p p p p p . . . . . . u p   t o   q   t e r m s ; g(p, 1) = p

Which one of the following options is correct based on the above?

Options :

  1. 𝑓(2,2) = 𝑔(2,2)

  2. 𝑓(𝑔(2,2), 2) < 𝑓(2, 𝑔(2,2))

  3. 𝑔(2,1) ≠ 𝑓(2,1)

  4. 𝑓(3,2) > 𝑔(3,2)

Show Answer

Answer :

𝑓(2,2) = 𝑔(2,2)

Solution :

f ( p , q ) = p × p × p × . . . . . . . × p q   t e r m s = p q ;

g ( p , q ) = p p p p p . . . . . . u p   t o   q   t e r m s

Option 1 :

f(2, 2) = 22 ⇒ 4

g(2, 2) = 22 ⇒ 4

f(2, 2) = g(2, 2) ⇒ True

Option 2 :

f(g(2, 2), 2) = f(4, 2) = 42 ⇒ 16

f(2, g(2, 2)) = f(2, 4) = 24 ⇒ 16

f(g(2, 2), 2) < f(2, g(2, 2)) ⇒ Not True

Option 3 :

g(2, 1) = 21 ⇒ 2

f(2, 1) = 21 ⇒ 2

g(2, 1) ≠ f(2, 1) ⇒ Not True

Option 4 :

f(3, 2) = 32 ⇒ 9

g(3, 2) = 32 ⇒ 9

f(3, 2) > g(3, 2) ⇒ Not True

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