10th Class Karachi Board Exams Quizzes MCQs Quizzes Karachi Board 10th Class Math Online Test 10

Question:
Eliminating x from x = a, 1/x = b we get

Option A):
Ab = -1
Option B):
b/a = 1
Option C):
ab = 1
Option D):
a/b = 1

Correct Answer is Option C):
ab = 1