If m = a secA and y = b tanA, then find the value of b²m² - a²y² + (a²y² / b²m²) + cos²A.
Question
If m = a secA and y = b tanA, then find the value of b²m² - a²y² + (a²y² / b²m²) + cos²A.
If m = a secA and y = b tanA, then find the value of b²m² - a²y² + (a²y² / b²m²) + cos²A.