6.2 Trigonometric Functions: Unit Circle Approach/101: Difference between revisions

Latest revision as of 17:48, 11 September 2022

$f(\theta )=\sin(\theta )$

$\theta =60^{\circ }$

$f(2\theta )$

$f(2\theta )=f(2\cdot 60^{\circ })=f(120^{\circ })=\sin(120^{\circ })={\frac {\sqrt {3}}{2}}$

@@ Line 1: / Line 1: @@
 <math>
   f(\theta)=\sin(\theta)
+</math>
+<math>
+\theta=60^\circ
 </math>
 <math>
 f(2\theta)
-</math>
-f(2(60^\circ)=120^\circ
 </math>
 <math>
+f(2\theta)= f(2\cdot 60^\circ)=f(120^\circ)=\sin(120^\circ)= \frac{\sqrt{3}}{2}
-sin(120^\circ)= \frac{\sqrt{3}}{2}
 </math>