This follows from the identity
![\cot(x) = \dfrac1{\tan(x)} = \tan(90^\circ - x)](https://tex.z-dn.net/?f=%5Ccot%28x%29%20%3D%20%5Cdfrac1%7B%5Ctan%28x%29%7D%20%3D%20%5Ctan%2890%5E%5Ccirc%20-%20x%29)
The overall product is 1 because
![\tan(10^\circ) \tan(80^\circ) = \cot(80^\circ) \tan(80^\circ) = 1](https://tex.z-dn.net/?f=%5Ctan%2810%5E%5Ccirc%29%20%5Ctan%2880%5E%5Ccirc%29%20%3D%20%5Ccot%2880%5E%5Ccirc%29%20%5Ctan%2880%5E%5Ccirc%29%20%3D%201)
![\tan(20^\circ) \tan(70^\circ) = \cot(70^\circ) \tan(70^\circ) = 1](https://tex.z-dn.net/?f=%5Ctan%2820%5E%5Ccirc%29%20%5Ctan%2870%5E%5Ccirc%29%20%3D%20%5Ccot%2870%5E%5Ccirc%29%20%5Ctan%2870%5E%5Ccirc%29%20%3D%201)
![\tan(30^\circ) \tan(60^\circ) = \cot(60^\circ) \tan(60^\circ) = 1](https://tex.z-dn.net/?f=%5Ctan%2830%5E%5Ccirc%29%20%5Ctan%2860%5E%5Ccirc%29%20%3D%20%5Ccot%2860%5E%5Ccirc%29%20%5Ctan%2860%5E%5Ccirc%29%20%3D%201)
![\tan(40^\circ) \tan(50^\circ) = \cot(50^\circ) \tan(50^\circ) = 1](https://tex.z-dn.net/?f=%5Ctan%2840%5E%5Ccirc%29%20%5Ctan%2850%5E%5Ccirc%29%20%3D%20%5Ccot%2850%5E%5Ccirc%29%20%5Ctan%2850%5E%5Ccirc%29%20%3D%201)
X=−6 quick maths xd xd xd
B would be the best answer! I hope u have a nice day :)
mark brainliest?!
Pythagorean theorem
The sum of the areas of the two squares on the legs (a and b) equals the area of the square on the hypotenuse (c).<span>GeometryProjecting a sphere to a plane.<span>OutlineHistory</span>Branches[show]<span>ConceptsFeatures</span>[hide]DimensionCompass-and-straightedge constructions<span>AngleCurveDiagonal<span>Orthogonal(Perpendicular)</span>ParallelVertex</span><span>CongruenceSimilaritySymmetry</span>Zero / One-dimensional[show]Two-dimensional[show]Three-dimensional[show]Four- / other-dimensional[show]Geometersby name[show]by period[show]<span> Geometry portal</span><span>vte</span></span>
In mathematics, the Pythagorean theorem, also known as Pythagoras' theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. The theorem can be written as an equation relating the lengths of the sides a, b and c, often called the "Pythagorean equation":<span>[1] Google says</span>
Answer:
[-7, ∞ )
Step-by-step explanation:
I'm assuming that the function is y = (x + 8)² - 7
To find the range, we need to find the vertex,
Vertex form of a quadratic equation is y = a(x - h)² + k, where (h, k) is the location of the vertex. Our equation has a = 1, h = -8, and k = -7. Since a > 0, the parabola opens up, so the upper limit of the range is infinity. To find the lowest value of the range, we find the vertex.
Here the vertex is at point (-8, -7), so -7 is the lower limit of the function's range.
The range is [-7, ∞ )