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YeappsAlthough this is posted in the 'mathematics' section....I can only think of doing this question using results learnt in 3u. You are a 3U student according to your sig yeah?
Although this is posted in the 'mathematics' section....I can only think of doing this question using results learnt in 3u. You are a 3U student according to your sig yeah? If so then:
Sin 2θ = 2sinθcosθ
Then use the triangle you found in the first part and sub it in above to get your answer.
Sin4θ= 2 sin2θcos2θ
= 2sinθcosθ(cos^2θ-sin^2θ)
Then sub the values in to the corresponding parts.
Damn....i should learn to use latex.
Um, i made a little mistake.....look at my edited post above.....i put a 2 when its meant to be a 4. I just did it on paper and you should get the right answer.Ahhs okays
Thank you soo much !
No biggieUm, i made a little mistake.....look at my edited post above.....i put a 2 when its meant to be a 4. I just did it on paper and you should get the right answer.