Sin A Cot A = Cos A, Cos A CosecA= Cot A, Sec A Cot A=CosecA, Cosec A Tan A =Sec A their r total 4 question. I will give brainli
1 answer:
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Answer:
Step-by-step explanation:
So here we have a 45-45-90 triangle.
This a special right triangle were the sides across from the 45 degree angles can be considered x, while the hypotenuse is two square roots of x.
Here since we have the sides across from the 45 degree angle we can conclude that
So if we wanted the hypotenuse we would just plug in this value of x like so:
Therefore the hypotenuse is 18.
Answer:
b) (5, -3)
Step-by-step explanation:
The given equations are;
I prefer using substitution because of the first equation.
Put equation (1) into equation (2) to obtain;
We expand the parenthesis to obtain;
Group similar terms to get;
Simplify
Divide through by 5;
Put into equation (1) to get;
The solution is (5,-3).
The correct answer is B