We know that
x =
So:
x =
If f(x) = 2x2 − 10, find f(5). 90 10 7.5 40
2 answers:
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Given:
Two vectors are:
To find:
The projection of u onto v.
Solution:
Magnitude of a vector is:
Dot product of two vector and
is:
Formula for projection of u onto v is:
On further simplification, we get
Therefore, the projection of u onto v is .
Answer:
Therefore area of a triangle whose vertices are (0,0), (4,2), (-1,2) is
5 units².
Step-by-step explanation:
Given:
Let the vertices be,
point A( x₁ , y₁) ≡ ( 0 , 0)
point B( x₂ , y₂) ≡ (4 , 2)
point C(x₃ , y₃ ) ≡ (-1 , 2)
To Find:
Area of Triangle = ?
Solution:
If the Vertices A( x₁ , y₁), B( x₂ , y₂) and C(x₃ , y₃ ) then the Area of Triangle is given by
Substituting the values we get
Therefore area of a triangle whose vertices are (0,0), (4,2), (-1,2) is
5 units².