Simplify the trig expression by using the co function identity

The video tutorial explains the use of cofunction identities in trigonometry, focusing on the relationship between sine and cosine. It further explores the concept of reciprocals, particularly between secant and cosine, and demonstrates how these properties can be applied to solve equations.

What identity is used to transform sine of π/2 minus Y?

• Pythagorean identity

• Cofunction identity

• Reciprocal identity

• Quotient identity

What is the result of multiplying secant and cosine of the same angle?

• 0

• Undefined

• 2

• 1

Which of the following pairs are reciprocals?

• Cosecant and tangent

• Secant and cosine

• Tangent and cotangent

• Sine and cosine

What is the reciprocal of cosine?

• Sine

• Tangent

• Cotangent

• Secant

Which trigonometric function is equivalent to 1 divided by cosine?

• Tangent

• Secant

• Sine

• Cotangent