True or False :
The numbers a,0,b can be in G.P. for some suitable values of a and b.

True/false Every whole number is a rational number.

Classify the following statement as ‘true’ or ‘false’ : sin (A + B) = sin A + sin B for all values of A and B.

True or False Earthquakes can be predicted in advance.

State whether the following are true or false. Justify your answer. :- sec A = 12/5 for some value of angle A.

True/false 0 is the smallest natural number.

True or false The points (a,0,0),(0,b,0) and (0,0,c) are collinear (abc ne 0) .

True or False statements : if A and B are square matrices of the same order then A - B = B - A.

True/false pi is a rational number.

In the following, determine whether the statement is true or false. If it is true, prove it. If it is false, give an example. If A cancelsub B and B cancelsub C , then A cancelsub C