Provide the correct justifications for each statement in the derivation of the tangent difference identity. 1.

identity

2. Trigonometric

identities

3. Divide numerator and denominator by

4. Factor out common factors using the quotient identity.

1: Quotient

2: Difference

3: cos(x)cos(y)

Step-by-step explanation:

I just did it on Edge :)

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b