how to find the value of sin 40 in sin 29?
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If any angle x is in degree then it is equal to (x×π/180) unit in radian. (a+h)=(37×π/180+3π/180). h=3π/180. @Ujjayanta Bhaumik has given a good solution which gives an idea in which range sin 40 actually lies,But if you want to calculate it's Approximate value by mentally then here is solution .
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