Question

√1- sin A/1+ sin A= cosA/1+ sin A​

Answer 1

Answer:

An expression is a number, a variable, or a combination of numbers and variables and operation symbols.

An equation is made up of two expressions connected by an equal sign.

Answer 2

Answer:

−sinA

∣=

cosA

1−sinA

.

Now

−1≤sinA≤1

Or

0≤1−sinA≤2.

Hence

∣1−sinA∣=1−sinA.

Hence we get

(1−sinA)(

∣cosA∣

1

−

cosA

1

)=0

Or

sinA=1 and A=

2

π

or

∣cosA∣=cosA. This implies Aϵ[−

2

π

,

2

π

].

Hence Ist and IVth quadrant.