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garik1379 [7]
3 years ago
11

Name the property of equality that justifies the following statement: If l = m, then m = l. Symmetric Property Multiplication Pr

operty Subtraction Property Reflexive Property
Mathematics
2 answers:
nydimaria [60]3 years ago
5 0
Symmetric property is the answer ;)
mixas84 [53]3 years ago
4 0

Answer: Symmetric Property

Step-by-step explanation:

The symmetric property of equality is given by :

\text{if a=b then b=a}

The given statement :  If l = m, then m = l.

We can see that the symmetric property of equality justifies the above statement.

The other properties fro any numbers a,b and c  are :

Multiplication property : if a=b , then ac=bc

Subtraction property : if a=b, then a-c=b-c

Reflexive property : a=a

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Answer:

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The vector sum of A and B vectors in 2D is

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C=\sqrt{(a_1+b_1)^2+(a_2+b_2)^2} =9

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Using the properties of the sum of two angles in the sin and cosine:

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Sustituying in the magnitud of the sum

C=\sqrt{(Asinx+Bcosx)^2+(Acosx-Bsinx)^2} =9

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