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Tejaswin Singh Grade: 11
        

Dear Sir,


How do you calculate angles like sine of 37 or sine of 33 or such odd angles?


Thankyou,


Tejaswin Singh

6 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear Tejaswin


We can calculate these type of angel ,with the knowledge of available formula and known angels


 


for example


sin33 = sin(15+18)


          =sin15 cos18 + cos15 sin18


we know these values


sin33 = [√3 -1]/2√2 * √{10 +2√5)/4    + [√3 +1]/2√2 * (√5 -1)/4


 


simplyfy and you will get the result


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Badiuddin

6 years ago
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