Multiplying two trig functions using identities

The video tutorial discusses the breakdown of trigonometric problems using cofunction identities, focusing on cotangent and tangent relationships. It explains the concept of even and odd functions, highlighting that cosine and secant are even, while others are odd. The tutorial emphasizes simplifying trigonometric identities using sines and cosines as a starting point. It concludes with applying the division property to simplify expressions involving fractions, resulting in the negative secant of X.

Which of the following is a cofunction of cotangent?

• Cosine

• Secant

• Tangent

• Sine

Which trigonometric functions are considered even?

• Tangent and Cotangent

• Cosecant and Secant

• Sine and Cosine

• Cosine and Secant

What is a recommended first step when simplifying trigonometric expressions?

• Apply the angle sum identities

• Simplify in terms of sines and cosines

• Use the Pythagorean identities

• Convert to tangent and cotangent

What should you do if simplifying with sines and cosines does not help?

• Apply the cofunction identities

• Move on to another method

• Use the double angle identities

• Try using tangent and cotangent

What property is applied when multiplying fractions in trigonometric expressions?

• Division property

• Subtraction property

• Addition property

• Multiplication property