How to verify an identity by combining terms

The video tutorial explains how to combine trigonometric expressions using sine and cosine. It starts by converting expressions into sine and cosine terms, then identifies a common denominator to combine them. The tutorial applies trigonometric identities to simplify the expression, ultimately showing that the expression equals secant of X.

What is the initial step taken to transform the left side of the equation?

• Expressing terms in terms of tangent and secant

• Expressing terms in terms of secant and cosecant

• Expressing terms in terms of tangent and cotangent

• Expressing terms in terms of sine and cosine

What is the common denominator used to combine the terms?

• Cosine of X

• Tangent of X

• Secant of X

• Sine of X

What identity is used to simplify cosine squared plus sine squared?

• Cosine squared plus sine squared equals cosine

• Cosine squared plus sine squared equals zero

• Cosine squared plus sine squared equals two

• Cosine squared plus sine squared equals one

What is the final expression obtained after simplification?

• Cotangent of X

• Secant of X

• Cosecant of X

• Tangent of X

Which identity is used to express one over cosine of X?

• Even-Odd identity

• Quotient identity

• Pythagorean identity

• Reciprocal identity