Posted by Thomas on .
I need helping in filling in the blanks/
the angle formed at the centre of the circle by two radii is the _______ angle.
cos delta, sin delta, tan delta are known as the ___________trigonometric ration
cos (pie/2  x)=sinx is an example of a ________ identity

Grade 12 Calculus 
Reiny,
central
primary
complementary