What is the mathematical meaning of each symbol below? give an example of each using numbers and/or algebraic expressions. ∼ ∪ ∩ ∅ ≠ !

∼  : This symbol denotes similarity

∪ : This symbol means union

∩ : This symbol means Intersection

∅ : means an empty set

≠ : this symbol mean not equal to

! : This symbol means factorial

Step-by-step explanation:

Given symbols in the question:

∼  : This symbol denotes similarity

i.e the resemblance or likeness.

∪ : This symbol means union

i.e

A∪B element that belong to set A or set B

∩ : This symbol means Intersection

i.e

A∩B = Element that belong to set A and set B

∅ : means an empty set

For example

if A = { 1, 2, 3 }   B = { 4, 5, 6 }

Then,

A∩B = ∅

≠ : this symbol mean not equal to

i.e

LHS is not equal to RHS

! : This symbol means factorial

i.e

If we write 3!

we solve it as 3! = 3 × 2 × 1

we know that

applying the law of sines

°

so

∠j=18°

∠k=29°

∠l=180-(18+29)=133°

the answer part a) is

the measure of angle k is  ≈29°

part b)  the measure of angle k could also be

(180-29)=151°

so

∠j=18°

∠k=151°

∠l=180-(18+151)=11°

the answer part b) is

the measure of angle k could also be 151°

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c

step-by-step explanation: