Question

Cot^2 x-csc^2 x=-1 for all values of x. True or false

Answer 1

TRUE

Explanation:

The well known trigonometry identity states that cot^2(x) + 1 = csc^2(x), rearrangin the equation we have that cot^2(x) - csc^2(x) = -1, which is exactly the expression in the statement. Therefore, the expression is TRUE.