Question

Use the definitions of the trigonometric ratios for a right triangle to derive a cofunction identity for tan(90° - A). Show your steps.

Answer 1

ANS:
In a right triangle, the acute angles are complementary. So A + B = 90° and B = 90° − A, where A and B are the
measures of the acute angles.
tan(90° − A) = tan B A and B are complementary angles.
=
b
a
definition of tangent in a right triangle
= cot A definition of cotangent in a right triangle

Answer 2

U get it?

Answer 3

i think so

Answer 4

k