Which equations for the measures of the unknown
angles x and y are correct? check all that apply.
x = costa
x= sin" e)
x= tan'a
y= sin "(a)
y = cos-'

Option B, Option C, Option E

Step-by-step explanation:

The options written correctly, are:

For this exercise you need to use the following Inverse Trigonometric Functions:

When  you have a Right triangle (a triangle that has an angle that measures 90 degrees) and you know that lenght of two sides, you can use the Inverse Trigonometric Functions to  find the measure of an angle :

Therefore, the conclusion is that the angles "x" and "y" can be found with these equations:

step-by-step explanation:

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assuming you mean addition: addition and subtraction are reverse operations.

step-by-step explanation: