How many 4-letter words (with or withou...

How many 4-letter words (with or without meaning) containing two vowels can be constructed using only the letters (without repetition) of the word 'LUCKNOW?

240

200

150

120

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NDA PREVIOUS YEARS-QUESTION PAPER 2021(I)-MULTIPLE CHOICE QUESTION

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For what values of k is the system of equations 2k^2x + 3y - 1 = 0, ...
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Whet is the value of the following? cot[sin^(-1)(3/5) + cot^(-1)(3/2)]
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Let 4sin^(2)x - 3, where 0 le x le pi. What is tan 3x is equal to?
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