In the group (Q+, *) of positive rational numbers w.r.t. the binary operation * defined by a * b = , the solution of the 3 equation 5 * 4 = 4-1 in Q+ is
20
A population p(t) of 1000 bacteria introduced into nutrient medium grows according to the relation p(t) = 1000 + . The maximum 100+t size of this bacterial population is
1100
1250
1050
5250
is equal to
D.
If ST and SN are the lengths of the subtangent and the subnormal at the point on the curve x = a, y = a, , then
ST = SN
ST = 2SN
ST2 = aSN3
ST3 = aSN