The base of common logarithm is:
a) 0
b) 1
c) -1
d) 10
Explanation: The
base of common logarithm is 10 and the base of natural logarithm is “e”
If x = 2, y = -3, evaluate x2 – 2y2 + x:
a) -12
b) 12
c) 2
d) -3
Explanation: x2 – 2y2 + x = ? Putting the value of x and y we get
22 – 2(-3)2 + 2 = 4 –
2(9) + 2
= 4 – 18 + 2 =
-18 + 6 = -12
Perpendicular bisectors of a triangle are:
a) Congruent
b) Concurrent
c) Parallel
d) Perpendicular
