Pythagorean identities:

sine squared (theta) + cosine squared (theta) = 1. tangent squared (theta) + 1 = secant squared (theta). 1 + cotangent squared (theta) = cosecant squared (theta).

Which statement(s) are true based on the Pythagorean identities?

One-third of the people from country a claim that they are from country b, and the rest admit they are from country a. one-fourth of the people from country claim that they are from country a, and the rest admit they are from country b. in a combined census of the two countries, one-half of the total claimed to be from a. what is the ratio of the populations of country a to that of country b.

In the triangles, tr = ge and sr = fe. if = 3.2 ft, which is a possible measure of ? 1.6 ft 3.0 ft 3.2 ft 4.0 ft

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?