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• Matrices
• Algebra
• Geometry
• Graphs and functions
• Trigonometry
• Coordinate geometry
• Combinatorics
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 Monomials Polynomials Special products Equations Quadratic equations Radical expressions Systems of equations Sequences and series Inner product Exponential equations Matrices Determinants Inverse of a matrix Logarithmic equations Systems of 3 variables equations
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 Equations of a straight line Parallel, coincident and intersecting lines Distances Angles in space Inner product

 Decimals Multiplication Multiplying decimals To multiply decimals, follow these steps: Multiply normally, ignoring the decimal points. Put the decimal point in the answer - it will have as many decimal places as the two original numbers combined (count up how many numbers are after the decimal point in both numbers you are multiplying, then the answer should have that many numbers after its decimal point). 5.09 x 7.12 = 36.2408               4.2 x 9.17 = 38.514           Multiply the following decimals: $\;9.1\;\cdot\;8.36\;=$