Question

root 1+sinA÷1-sinA solve this question please​

Answer 1

✓1+sinA/1-sina

by rationalization

✓1+sinA*1✓1+sinA/1- sinA*1+sinA

(✓1+sinA)^2/1^2-sin^2

here (a+b)^2 and a^2-b^2

1+sin^2+2 sinA*1/1-sin^2

apply trigonometric formula

2 sin A is equal to 2 sinA cosA

1-sin^2 = cos^2