Question

sin(theta)=(3(radical10)/10), cos(theta)=(radical10)/10. find the exact value of each of the other 4 trigonometric functions

Answer 1

for this equation, i think its best if you draw out the triangle

Answer 2

heres the graph, now according to what sin(theta) is and what cos(theta) is, that tells you where on the graph the triangle is

Answer 3

you know that sin is opposite/hypotenuse and that cos is adjacent/hypotenuse. Technically, adjacent would be your x and opposite would be your y

Answer 4

now, because your "x" and "y" are both positive, you know the triangle is in the first quadrant