Need help with this.

Select all the correct statements.
A. If sin(θ) = 23, then sec(θ) = 32
B. If cot(θ) = 13, then tan(θ) = 3.
C. If cos(θ) = sin(18°), then θ = 32°.
D. If sin(θ) = cos(θ), then θ = 45°.
E. If θ = 68°, then tan(θ) = cot(22°).

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

10x − 5y + 14 = 0 whats the answer pls