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) -19/29 × 29/-19 = 1​

Answer 1

Answer:

The property used in this is known as multiplicative inverse

Step-by-step explanation:

Answer 2

Step-by-step explanation:

When some portion of the mirror is covered with non-reflecting paper, then-ever the complete image is formed. But the intensity of the image formed is less. The intensity is less because light from the smaller region now is reflected to form the image.

thanks for ur reasonable ans:)