megjelenik Bűntudat diagram 4 12 3 pi 3 curl megsért asztal
Ex 10.4, 3 - If a unit vector a makes angles pi/3 with i, pi/4
trigonometry - If $\cos (α + β) = 4 / 5$ and $\sin (α – β) = 5 / 13$, where $α$ lie between $0$ and $\pi/4$, find the value of $\tan2α$. - Mathematics Stack Exchange
arrange the steps in the correct order to solve: sin 3pi/4 cos pi/12 - Brainly.com
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