Answer:
3/4
Step-by-step explanation:
1/4 * 3 = 3/4
This is a fraction, not a mixed number
Answer:
174
Step-by-step explanation:
give brainliest please
Answer:
and 
Step-by-step explanation:
we know that
The formula to solve a quadratic equation of the form
is equal to

in this problem we have
Equate the function to zero
so

substitute in the formula


Remember that

so

Simplify

therefore
and 
We have been given that
and angle A is in quadrant 1. We are asked to find the exact value of
in simplest radical form.
We know that sine relates opposite side of right triangle with hypotenuse.

This means that opposite side is 12 units and hypotenuse is 13 units.
We know that cotangent relates adjacent side of right triangle with adjacent side.

Now we will find adjacent side using Pythagoras theorem as:




Let us take positive square root on both sides:

Therefore, adjacent side of angle A is 5 units.

Therefore, the exact value of cot A is
.