The sine of an angle equals the cosine of its complement.
Answer: D. sin(30°) = cos(60°)
Answer:
Option D. is the answer.
Step-by-step explanation:
In this question we have to find the statement that provides incidence that sine and cosine are co-functions.
As we know co function identities clearly say
([tex]sin(\frac{\pi }{2}-x)=cosx[/tex]
A. For x = 30° or [tex]\frac{\pi }{6}[/tex]
[tex]sin(\frac{\pi }{2}-\frac{\pi }{6})=cos(\frac{\pi }{6})[/tex]
[tex]sin\frac{\pi }{3}=cos\frac{\pi }{6}[/tex]
Or [tex]sin(60)=cos(30)[/tex]
B. For x = 60°
sin(90-60) = cos(60)
sin(30) = cos(60)
Which is similar to option D.
Therefore, Option D. is the the correct answer.
