NDA Government Jobs Exams

If 4^x – 6.2^x + 8 = 0, then the values of x are

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NDA Other Question

What is the argument of the complex number (–1 – i) where i = sqrt(−1) A bag contains balls of two colours, 3 black and 3 white. What is the smallest number of balls which must be
drawn from the bag, without looking, so that among these there are two of the same colour