RRB Group D 19 Sep 2022 Shift 3 Solved Paper

© examsiri.com

Question : 41 of 100

Marks: +1, -0

If cot A + cos A = m and cot A - cos A = n, then:

(m² - n²)² = 4 mn
(m² - n²)² = 16 mn
m² - n² = 16 mn
m² + n² = 4 mn

Go to Question:

Prev Question

Next Question