Multiply two trig functions using co function and even odd identities

The video tutorial covers the tangent of negative angles and the application of even-odd identities. It explains cofunction identities and how transformations can be applied to trigonometric functions, specifically focusing on sine and cosine. The tutorial concludes with rewriting expressions in terms of sines and cosines, providing a comprehensive understanding of these concepts.

What does the even-odd identity tell us about the tangent of a negative angle?

• It becomes positive.

• It becomes zero.

• It remains the same.

• It becomes negative.

Which of the following is NOT a cofunction identity?

• Sine and Tangent

• Secant and Cosecant

• Tangent and Cotangent

• Sine and Cosine

What transformation can be applied to sine to get cosine?

• Multiplication by 2

• Addition of 90 degrees

• Subtraction of 90 degrees

• Division by 2

Which trigonometric function can be rewritten in terms of sine and cosine?

• Cosecant

• Tangent

• All of the above

• Secant

What is the result of rewriting the negative sine of theta in terms of sines and cosines?

• Negative cosine of theta

• Positive cosine of theta

• Negative sine of theta

• Positive sine of theta