Which of following equations are identities. Check all that apply. A. csc x = 1/sin x
B. tan x = 1/sec x
C. sec x = 1/csc x
D. tan x = sin x/cos x

An is a number that is written without a component. it is a number that is either or . an exponent is a or a number that another number is being to. the number that is being raised to a is called the . the or power tells you how many times to the base by . if an exponent is fractional then ask yourself the question: what when multiplied by itself a certain number of times will equal the number?