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Mathematics 11 Online
OpenStudy (anonymous):

I forgot how to this, can anyone explain this to me please and thank you guys. 3. Find the exact value of the following, show all work: a. sin2(75°) -------------- sin 45° cos230° ^ it's a fraction (Hint: sin2θ = (sinθ)2 ) b. tan(135°) + sin(30°)cot(120°)

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