How do you find sin(-pi/2)?
1 Answer
May 4, 2018
Explanation:
using the trigonometric identity
∙xsin(−x)=−sin(x)
⇒sin(−π2)=−sin(π2)=−1
using the trigonometric identity
∙xsin(−x)=−sin(x)
⇒sin(−π2)=−sin(π2)=−1