System software : Utility software : :
Operating system· Anti-virus
Anti-virus Operating system
Anti-virus MS office
MS office Anti-virus
If f(x) = , where [x] denotes the gretest function less than or equal to x, then is equal to
1
0
- 1
Does not exist
If for all x, y N, there exists a function f(x) satisfying f(x + y) = f(x) · f(y) such that f(1) = 3 and , then value of n will be
4
5
6
None of these
If sin(a) and cos(a) are the roots of the equation ax2 + bx + c = 0, then
a2 - b2 + 2ac = 0
(a - c)2 = b2 + c2
a2 + b2 - 2ac = 0
a2 + b2 + 2ac = 0
A.
a2 - b2 + 2ac = 0
It is given that, are the roots of ax2 + bx+ a = 0
In , if cot(A), cot(B) and cot(C) are in AP, then a2, b2 and c2 are in
HP
AP
GP
None of the above
A die is rolled three times. The probability of getting a larger number than the previous number is
The graph of the equation y2 + z2 = 0 in three dimensional space is
YZ-plane
Z-axis
Y-axis
X-axis
If Z1 = 1 + i, Z2 = - 2 + 3i and Z3 = are collinear, where i2 = - 1, then the value of a will be
- 1
3
4
5