D Drongoski Well-Known Member Joined Feb 22, 2009 Messages 4,252 Gender Male HSC N/A Dec 6, 2022 #2 Is answer ??:
? =)(= Active Member Joined Jul 14, 2021 Messages 645 Gender Male HSC 2023 Dec 6, 2022 #3 soz I dont have the answers but would you be able to explain how you got your answer?
H hogzillaAnson Member Joined Jul 14, 2018 Messages 20 Gender Male HSC 2020 Uni Grad 2025 Dec 6, 2022 #4 It's essentially two applications of the double angle formulae. We are in quadrant 4, which means that cosine is + and sine is - (as given). So
It's essentially two applications of the double angle formulae. We are in quadrant 4, which means that cosine is + and sine is - (as given). So
? =)(= Active Member Joined Jul 14, 2021 Messages 645 Gender Male HSC 2023 Dec 7, 2022 #5 ahh i see tysm