Question

Name the property under multiplication used in each of the following.

i. -4/5×1=1×-4/5=4/5 ii. -13/17×-2/7= -2/7×-13/17 iii. -19/20 × -29/-19 = 1.​

Answer 1

Answer:

1) and 2) commutative property

3) i think its closure property

Answer 2

: Required Answer

$\implies$(i) -4/5 × 1 = 1 × (-4/5) = -4/5

Here 1 is the multiplicative identity.

$\implies$(ii) -13/17 × (-2/7) = -2/7 × (-13/17)

The property of commutativity is used in the equation

$\implies$(iii) -19/29 × 29/-19 = 1

Multiplicative inverse is the property used in this equation.