Factor each trigonometric expression.
4 tan² β + tan β - 3

검증된 단계별 안내

Identify the expression to be factored: \(4 \tan^2 \beta + \tan \beta - 3\).

Recognize that this is a quadratic expression in terms of \(\tan \beta\).

Use the substitution \(x = \tan \beta\) to rewrite the expression as \(4x^2 + x - 3\).

Factor the quadratic expression \(4x^2 + x - 3\) using the method of your choice (e.g., trial and error, quadratic formula, or factoring by grouping).

Once factored, replace \(x\) with \(\tan \beta\) to express the factors in terms of \(\tan \beta\).

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Trigonometric Functions

Trigonometric functions, such as tangent, sine, and cosine, relate angles to ratios of sides in right triangles. The tangent function, specifically, is defined as the ratio of the opposite side to the adjacent side. Understanding how to manipulate these functions is essential for factoring expressions involving them.

Factoring Quadratic Expressions

Factoring quadratic expressions involves rewriting them as a product of their linear factors. The general form of a quadratic is ax² + bx + c, and it can often be factored into (px + q)(rx + s). Recognizing patterns and applying techniques like the AC method or trial and error are crucial for successfully factoring expressions like 4 tan² β + tan β - 3.

Zero Product Property

The Zero Product Property states that if the product of two factors equals zero, at least one of the factors must be zero. This principle is vital when solving equations after factoring, as it allows us to set each factor equal to zero to find the possible values of the variable. In the context of trigonometric expressions, this helps in determining the angles that satisfy the equation.

Factor each trigonometric expression.4 tan² β + tan β - 3