Multiply and simplify
cot x (sin x + sec x)

Okay. Just to make sure, cot x  = cos x / sin x.

1) So, once cot x is distributed to sin x, then the sin x will cancel out the sin x from the cot x (which I showed you above) and you will be left with just cos x.

2) Once cot x is distributed to sec x (which can be also written as 1 / cos x), the cos x from cot x will cancel out the cos x from sec x.

3) Once you do that, your final answer will be: cos x + (1 / sin x )

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.

answer: -8.2562234e+13