Domanda del libro di testo
Simplify each expression. See Example 8. -12y + 4y + 3y + 2y
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Ch. R - Algebra Review
Lial12th EditionTrigonometryISBN: 9780136552161, 9780135440780, 9780136881117, 9780135440827, 9780135924891
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TOC.tableOfContents
- Ch. R - Algebra Review381
- Ch. 1 - Trigonometric Functions188
- Ch. 2 - Acute Angles and Right Triangles168
- Ch. 3 - Radian Measure and The Unit Circle155
- Ch. 4 - Graphs of the Circular Functions100
- Ch. 5 - Trigonometric Identities238
- Ch. 6 - Inverse Circular Functions and Trigonometric Equations158
- Ch. 7 - Applications of Trigonometry and Vectors148
- Ch. 8 - Complex Numbers, Polar Equations, and Parametric Equations15
Lial12th EditionTrigonometryISBN: 9780136552161, 9780135440780, 9780136881117, 9780135440827, 9780135924891Non è quello che usi tu?Cambia libro di testo
Capitolo 1, Problema R.2.89
Evaluate each expression. See Example 5. 18 - 4² + 5 - (3 - 7)
Guida verificata passo dopo passo1
Identify the order of operations to evaluate the expression: parentheses first, then exponents, followed by multiplication/division, and finally addition/subtraction.
Evaluate the expression inside the parentheses: calculate \((3 - 7)\).
Calculate the exponent: evaluate \$4^2$.
Substitute the results from steps 2 and 3 back into the expression, so it becomes \(18 - \text{(result of }4^2\text{)} + 5 - \text{(result of }3 - 7\text{)}\).
Perform the addition and subtraction from left to right to simplify the expression completely.
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Order of Operations (PEMDAS/BODMAS)
The order of operations dictates the sequence in which parts of a mathematical expression are evaluated: Parentheses first, then Exponents, followed by Multiplication and Division (left to right), and finally Addition and Subtraction (left to right). This ensures consistent and correct results.
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Percorso guidato
04:12
Algebraic Operations on Vectors
Exponents
Exponents represent repeated multiplication of a base number. For example, 4² means 4 multiplied by itself once (4 × 4 = 16). Evaluating exponents before other operations is crucial to correctly simplifying expressions.
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Percorso guidato
4:28Introduction to Inverse Trig Functions
Simplifying Expressions with Parentheses
Parentheses indicate which parts of an expression should be evaluated first. Simplifying inside parentheses can change the overall value of the expression, so it is important to handle these sections carefully before proceeding with other operations.
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Percorso guidato
6:36Simplifying Trig Expressions
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