Question

cosA÷1-sinA= secA-TanA

Answer 1

Hello Buddy,

Given Equation: cosA/1-sinA

To prove: secA+tanA

Proof: Multiply the equation with 1+sinA both with up and down

1) CosA(1+sinA)/1-sinA(1+sinA)

2)CosA(1+sinA)/1-sin²A

3)CosA(1+sinA)/cos²A

4)1+sinA/cosA

5)1/cosA + sinA/cosA

6)SecA+TanA                                                                        Hence, proved

Regards, EducationAssassin