Question

sin theta=2mn/m^2+n^2, show that sec theta + tan theta = m+n/m-n​

Answer 1

Step-by-step explanation:

[ Refer to the attachment ]

• Formula used :-

▪️( a + b )² = a² + 2ab + b²

▪️ a² - b² = ( a + b ) ( a - b )

▪️ ( a - b )² = a² - 2ab + b²

• Concept used :-

▪️ Trigonometric Ratio !!