For what values of x is the rational expression below undefined? x+5/3x^2-3
2 answers:
Answer:
Hence, the values of x for which the expression is not defined is equal to 1 or -1.
Step-by-step explanation:
We are asked to find for which values of x is the rational expression:
is undefined.
We know that a rational expression is undefined when the denominator term is equal to zero.
Hence, we could represent the algebraic expression as:
Hence, clearly from the expression we could observe that:
the expression is not defined when x=1 or x=-1.
( since the denominator will be zero if x receives any of the above two values or both)
Hence, the values of x for which the expression is not defined is equal to 1 or -1.
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Answer:
Area of triangle is 25.
Step-by-step explanation:
We have been given an isosceles right triangle
Isosceles triangle is the triangle having two sides equal.
Figure is shown in attachment
By Pythagoras theorem
AD is altitude which divides the triangle into two parts
DC=5 implies BC =10 since D equally divides BC
Let AC=a implies AB=a being Isosceles
On substituting the values in the Pythagoras theorem:
WE can find area of right triangle by considering height AB and AD
Area of triangle ABC is:
(1)
And other method of area of triangle is:
(2)
Equating (1) and (2) we get:
Using area of triangle is:
Now, the area of triangle ABC=