Question

Simplify the expression and chose the correct answer.

Answer 1

Option B

Explanation:

`(1)/(c) +(1)/(d) /(c)/(d) +(d)/(c)\\`

`(d+c)/(c*d) /(c^(2)-d^(2))/(c*d) \\`

`((d+c)*c*d)/((c^(2)-d^(2))*c*d)\\`

Remember Difference of squares:
`(c^(2) -d^(2) )=(c+d)*(c-d)`

`((d+c)*c*d)/((c+d)*(c-d)*c*d)\\`

`(1)/(c-d)`