Respuesta :
The question should be accompanied with choices, below are the choices:
a) sqrt(1-x^2)
b) x/sqrt(1-x^2)
c) sqrt(1-x^2)/x
D) 1/sqrt(1-x^2)
The answer should be c) sqrt(1-x^2)/x .
cos u = sqrt (1 - sin^2 u) = sqrt(1 - x^2), and cot u = cos u / sin u.
a) sqrt(1-x^2)
b) x/sqrt(1-x^2)
c) sqrt(1-x^2)/x
D) 1/sqrt(1-x^2)
The answer should be c) sqrt(1-x^2)/x .
cos u = sqrt (1 - sin^2 u) = sqrt(1 - x^2), and cot u = cos u / sin u.
The required value will vary Between [1,∞)
What is Trigonometry?
It is the branch of science that studies the relation between right-angled triangles.
How to solve?
if sin u = x and u varies from 0 to [tex]\frac{\pi }{2}[/tex]
We know, Sec u = [tex]\frac{1}{cos u}[/tex]
Then, for sec u or sec u varying from 0 to [tex]\frac{\pi }{2}[/tex] value will be in between [1,∞)
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