Question

DULUI
Given : A = xî + 3xſ + 2k, B = -xí + + k & A is perpendicular to B, find sum of possible values of X​

Answer 1

Answer:

Explanation:   A .B=0   as A.Bcos 90 0 = 0  

so dot product of A. B ={ xi  +3j +2k].[-ix+k}= -x2 +2=0 x= + and - 1.41

Answer 2

Answer:

The rate of interest offered by the fixed deposit

scheme of a bank for 365 days and above is 12%.

What will be the status of $20,000, after two years

if it is invested at this point of time?

*25,088

$28,032

22,056

ΟΟ

224,048