Question

Exercise 1.1
Q.1. State which of the following are statements. Justify, In case of statement, state its truth
value.
i) 5 + 4 = 13.
ii) X-3 = 14.
iii)
Close the door.
iv)
Zero is a complex number.
v) Please get me breafast.
vi) Congruent triangles are similar.
vii) x² = x​

Answer 1

Answer:

iv)  Zero is a complex number.

vi) Congruent triangles are similar.

Step-by-step explanation:

A complex number is real if its imaginary part is zero

If two angles of one triangle are congruent to two angles of another triangle, they are similar. If an angle of one triangle is congruent to the angle of another triangle, and also the sides of the angle considered in each triangle are proportional, then the two triangles are similar.

Answer 2

Answer:

Option i), iv) and vi) are the statements and their truth value is F, T and T respectively.

Step-by-step explanation:

i) 5 + 4 = 13

It is a statement which is false.

As 5 + 4 =9 not 13

Thus, its truth value is F.

ii) x - 3 = 14

It is not a statement.

iii) Close the door

It is not a statement.

iv) Zero is a complex number

It is a statement.

Since real and imaginary parts are zero, i.e.,

0+i0 = 0 is a complex number.

Thus, its truth value is T.

v) Please get me breakfast.

It is not a statement.

vi) Congruent triangles are similar.

It is a statement.

If two pairs of corresponding angles in a pair of triangles are congruent then triangles are similar.

Its truth value is T.

vii) $x^2=x$

It is not a statement.

SPJ3