Question

CosA/1+sinA+1+sinA/cosA=2secA proof

Answer 1

cos A/1+sin A + 1+sin A/Cos A

Take Lcm Then we have

cos^2A+ ( 1 + sin A)^2 / CosA(1 + sin A)

cos ^2A+1+Sin^2A+ 2 sin A / CosA(l+sin A )

2+2 sin A/(1 + SinA) CosA

2(1+SinA)/Cos A(1+sinA)

2/cos A

2 sec A. HP........