Question

(1-SinA/CosA)
is equal to:​

Answer 1

Answer:

cos A/1+sin A

Step-by-step explanation:

let LHS = cos A  / 1+sinA

       = cos A (1-sinA)  / (1+sinA)(1-sinA)  

       = cos A (1-sinA)  /  1-sin^2A

       = cos A (1-sinA)  /  cos^2A

       = 1-sinA /cos A

RHS = 1-sinA / cos A

                            LHS = RHS