Question 5 Given arcsin (9/20) find cos () Question 6 Given sin 4x+sin 6x=0 Find the...

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a Or are sin (20) Sino= 20 coso = √202_q2 400-8) 319 20 20 10 Coso = 20030,- Colom) 2 It cojo 0-97289 2 e Snuxt sinor - Sin(5

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