Answer:
The triangle is not right angled.
Step-by-step explanation:
According to the Pythagoras theorem, the sum of the squares of the two legs of a triangle is equal the square of the third side.
For example, in triangle ABC,
It shows, that the triangle ANBC is right angled and right angle is at C.
So if the sum of the squares of the two legs of a triangle does not equal the square of the third side, it shows that the triangle is not right angled.
<u>Given</u>:
The given equation is
We need to determine the exact solutions of the equation.
<u>Exact solution:</u>
The exact solution of the equation can be determined by solving the equation using quadratic formula,
From the equation the values are a = 1, b = -3 and c = -7
Thus, substituting these values in the equation, we get;
Thus, the exact solutions of the given equation is
Hence, Option A is the correct answer.