Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
PLease solve 182 and 184
![**True or False?** In Exercises 181-184, determine whether the statement is true or false. If it is false, explain why or give an example that shows it is false.
**181.** The slope of the function \( f(x) = \sin ax \) at the origin is \( a \).
**182.** The slope of the function \( f(x) = \cos bx \) at the origin is \(-b\).
**183.** If \( y \) is a differentiable function of \( u \), and \( u \) is a differentiable function of \( x \), then \( y \) is a differentiable function of \( x \).
**184.** If \( y \) is a differentiable function of \( u \), \( u \) is a differentiable function of \( v \), and \( v \) is a differentiable function of \( x \), then
\[
\frac{dy}{dx} = \frac{dy}{du} \frac{du}{dv} \frac{dv}{dx}.
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