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I'm just learning integral...Thank you admin ..
The probability density function of a discrete random variable X is given by P(X=x)=a(1/2)^x ..... Then what is the value of a is..?????
If x=ai+bj , y=bj+ck , z=ai +ck, for which of the following triads (a,b,c) is x perpendicular to(z-y)?
1) (4 ,1 ,1)
2) (2 ,2 ,2)
3) (1 ,-1 ,1)
4) (-1, -2, 0
5) (1 ,2 ,0)
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