Question

$ln( \sqrt{1 + cosx \1 - cosx}{?} }{?} } )$
​

Answer 1

Step-by-step explanation:

2

−

2

1

−

7

2

y^{2}-21y-72

y2−21y−72

Grouping

1

Use the sum-product pattern

2

−

2

1

−

7

2

2

+

3

−

2

4

−

7

2

2

Common factor from the two pairs

3

Rewrite in factored form

Solution

(

−

2

4

)

(

+

3

)