Suppose sin(A) - IN
Use the trig identity sinº(A) + cos(A) - 1 and the trig Identity tan(A).
sin(A)
cos(A)
find tan(A) In quadrant I. Round to ten-thousandth.
A

Solve for x, y, and z. show all steps.

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?