Explain the difference between solving an and inequality and an or inequality.

Mathematics

1 answer:

adell [148]2 years ago

7 0

Answer:

An <u>and inequality</u> contains compound restrictions, i.e., x must be less that 4 and greater than 1, while an <u>or inequality</u> contains multiple sets of separate restrictions, in which, only one must be fulfilled, i.e., x is greater than 5 or less than -3.

Hope it helps :)

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Option D

Step-by-step explanation:

In the first three options we can evaluate the values of x with the help of Sine Rule for all the triangles

The Rule says

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Where a , b and c are the sides opposite to the angles A, B and C of any ΔABC.

Hence , in order to determine unknown values of sides or angles , we need any 3 values from all 3 sides and 3 angles in a triangle. First Three options give us three values but the last option gives only 2.

Example

in first option we can apply Sine Rule as

$\frac{\sin 84}{x}=\frac{\sin 63}{3}$