For triangle ABC with sides a, b, and c the Law of Cosines states

$$c ^ { 2 }$$

= ____

In triangle ABC, use the Law of Cosines to get a formula for cos A in terms of a, b and c.

In a triangle with sides a, b, c and angles A, B, C, the Law of Cosines states that _____.

What is the Law of Cosines?

The four cases in which we can solve a triangle are ASA SSA SAS SSS. In which of these cases can we use the Law of Sines to solve the triangle?

How do conservation practices affect natural resources?

Does the Law of Cosines reduce to the Pythagorean theorem whenever the triangle is acute?

Write the expression as a single fraction.

$$\frac { \cos \theta } { \sin \theta } + \frac { \sin \theta } { \cos \theta }$$

The bell tower of the cathedral in Pisa, Italy, leans

$$5.6 ^ { \circ }$$

from the vertical. A tourist stands 105 m from its base, with the tower leaning directly toward her. She measures the angle of elevation to the top of the tower to be

$$29.2 ^ { \circ }$$

. Find the length of the tower to the nearest meter.

Find k if the curve y=x²+k is tangent to the line y=2x.

Use a graphing utility to graph the function and determine any x-intercepts. Set y = 0 and solve the resulting equation to confirm your result. $y=x+2+\frac{2}{x+2}$

Use properties of real numbers to write the expression without parentheses. 4(2m)

Evaluate each expression.

$$\left(\begin{array}{l}{100} \\ {98}\end{array}\right)$$

Escribe las frases en el pretérito.

1. Hacemos una excursión interesante.
2. Tengo que hacer las maletas.
3. Ustedes ven todo, ¿no?
4. ¿Por qué no quieres ir?