Use an Addition or Subtraction Formula to Write $\sin 74 ^ { \circ } \cos 14 ^ { \circ } - \cos 74 ^ { \circ } \sin 14 ^ { \circ }$

question 80

Essay

Use an addition or subtraction formula to write $\sin 74 ^ { \circ } \cos 14 ^ { \circ } - \cos 74 ^ { \circ } \sin 14 ^ { \circ }$ and find its exact value.

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Definitions:

Straight Line

A direct, shortest path between two points in a plane, often used in mathematics to describe linear functions.

Horizontal Axis

In a graph or chart, the x-axis, representing the independent variable or the base line for measuring.

Vertical Axis

In a graph or chart, the y-axis which typically represents the dependent variable or outcome in relation to the independent variable on the horizontal axis.

Slope

In mathematics, the measure of the steepness or incline of a line, typically defined as the ratio of the vertical change to the horizontal change between two points on the line.