If Sk=sin(2πkn+1)−icos(2πkn+1) and Pk=cos(π2k)+isin(π2k), Let m – InterviewSolution

1.	If Sk=sin(2πkn+1)−icos(2πkn+1) and Pk=cos(π2k)+isin(π2k), Let m=∣∣∣n∑k=1Sk+∞∏k=1Pk∣∣∣, then the value of 2m2 is
Answer» If $S_{k} = sin (\frac{2 π k}{n + 1}) - i cos (\frac{2 π k}{n + 1})$ and $P_{k} = cos (\frac{π}{2^{k}}) + i sin (\frac{π}{2^{k}}),$ Let $m = ∣ ∣ ∣ n \sum k = 1 S_{k} + \infty \prod k = 1 P_{k} ∣ ∣ ∣$ , then the value of $2 m^{2}$ is

Discussion

No Comment Found

Related InterviewSolutions

The number of ways of choosing 2 cards from a pack of 52 where atleast one face card is choosen
Let P(3,3) be a point on the hyperbola, x2a2−y2b2=1. If the normal to it at P intersects the x−axis at (9,0) and e is its eccentricity, then the ordered pair (a2,e2) is equal to
P speaks truth in 75% cases while Q in 90%.in what % r they likely to contradict each other in stating the same fact .? Do u think B is true Do
If f(x) has the second order derivative at x = c such that f '(c) = 0 and f ''(c) > 0, then c is a point of _______________.
An A.P. consists of 43 terms, if the sum of five middle-most terms is 195, then the sum of the A.P. is
Find the angle between two vectors a and b with magnitudes √3 and 2 respectively, having a.b=√6
If y={x}[x], then 3∫0y dx is equal to,where {.} and [.] are fractional part function and greatest integer function respectively.
The graph of f(x)=−|log(x−3)|+3 will be
1∫0ex⋅x(1+x)2dx is equal to
What is a set and list all formulas of set.