Given cotA= 20/21 ​ and that angle A is in Quadrant I, find the exact value of csc A in simplest radical form using a rational denominator.

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0

my name jeff

step-by-step explanation:

natural disasters at one point james charles' career

-1/3(x+1)^5

i’m pretty sure this is correct