Answer:
The correct option is 1.
Step-by-step explanation:
If a quadratic equation is defined as

then the quadratic formula is

The given equation is

Here, a=1, b=-2 and c=-3.
Substitute these values in the above formula.


Therefore, the correct option is 1.
Answer:
Step-by-step explanation:
hypotenuse=√(x²+(x√3)²)=√(x²+3x²)=√(4x²)=2x
sides are x,x√3,2x
smallest side=x
smallest angle=opposite smallest side
let smallest angle=α
cos α=(x√3)/2x=√3/2
Answer:
i have tht too but i dont know the answrr :(
Step-by-step explanation:
Division of a fraction is the equivalent of multiplying by its reciprocal
ex.

i suggest you try to remember this concept
in terms of your question
from this point, just multiple the numerators together and denominators together, then simplify if necessary
fyi- difference of squares

relating that to

also a side note, you might want to factor out the 4 first in the top fraction