11th Class Punjab Board Exams Quizzes MCQs Quizzes Punjab Mathematics 11th Class Model Paper Chapter No 9

Question:
2tan⁻¹ A =

Option A):
tan⁻¹ (2A/1 + A)
Option B):
tan⁻¹ (A/1 – A)
Option C):
tan⁻¹ (1 – A² /2A)
Option D):
tan⁻¹ (2A/1 – A²)

Correct Answer is Option D):
tan⁻¹ (2A/1 – A²)