Verify That Each Equation Is an Identity $$\sin ( 4 x ) = ( 4 \sin x \cos x ) \left( 2 \cos ^ { 2 } x - 1 \right)$$

question 66

Short Answer

Verify that each equation is an identity.
- $$\sin ( 4 x ) = ( 4 \sin x \cos x ) \left( 2 \cos ^ { 2 } x - 1 \right)$$

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Definitions:

Density

The mass per unit volume of a substance, often measured in grams per cubic centimeter (g/cm³).

Mass

An estimation of the quantity of matter present in an object, commonly measured in grams or kilograms.

Significant Figures

Significant figures are the digits in a number that carry meaningful contributions to its measurement accuracy, including all the non-zero digits, zeroes between significant digits, and trailing zeros in a decimal.

Mass

A property of a physical body, indicating the amount of matter it contains and a measure of its resistance to acceleration when a force is applied.