The angles of elevation of top and bottom of a flag kept on a flag post from 30 metres distance, are 45 and 30 deg respectively. Height of the flag is [taking √3 = 1.732]
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The mean of a distribution is 21 and the standard deviation is 7. What is the value of the coefficient variation?
In the following question, select the odd word from the given alternatives.
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If a + b = 10 and ab- 13 = -ba - 11, then what is the value of 3ab + 4a2 + 5b2 ?
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