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Question #11760

prove that SinA Sin(60-A)Sin(60+A)=¼Sin3A

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**1.**if α+β = 90° find the maximum and minimum values of sinα.sinβ…**2.**Hi I have read a lot of your website but I am mainly interested in my online exam bein…**3.**find the amplitude, period of the function and sketch its graph 1. y = cos2x 2. y= -3si…**4.**prove that tan(60+A).tan(60-A)=2cos2A+1/2cos2A-1**5.**if 2tan(alpha)=3tan(beta), prove that tan(alpha-beta)=sin(2beta)/5-cos(2beta)**6.**prove that a)cos(90-/theta)cosec(90-/theta)=tan/theta**7.**Cos70=h and sin35=k, express in terms of h and/or k, Cos149=?

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Assignment was given back on time and the work is correct. Thank you so much for your effort and time! :) Definitely recommend.

#225913 on Mar 2019

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