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If (a ib)(c id)(e if)(g ih) = A iB, then (a2+b2) x (c2+d2) (e2+f2)(g2+h2) is equal to
In how many ways 7 men and 7 women can be seated around a round table such that no two women can sit together ?
How many numbers less than 40,000 can be formed from the digits 1,2,3,4,5 where repetition is not allowed ?
Number of divisors of the form 4n+2 of the integer 240 is
Hence there are four such numbers.
If x = a b,y = aω + bω, z = aω2 + bω then xyz is equal to
The smallest positive number n for with (1 + i)2n = (1– i)2n is
If z is a complex number such that z ≠ 0 and Re(z) =0, then