Prove sin^2 π/6 + cos^2 π/3 - tan^2 π/4 = -1/2​

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.

Complete each sentence with the correct form of the verb ser or estar to say where the following people are from or where they are right now claudia y maria en méxico