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asked in Calculus by Veteran (11.1k points)   | 99 views

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answered by Boss (9.1k points)  
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thanks for the soltution,i understood it but how did u know that we have to break at 5pi /6??u tried finding the function at different values after 30or by some other method??

Sin will decrease from 90 to 180 again so when it will fall below 0.5 that is at sin150 which is cos60 . . . So like that we can find
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