PDF chapter test TRY NOW

17. Find the area using suitable identity

If the rectangular cardboard is of dimension

(y + 9)

units and

(y - 11)

units, then find the area of the cardboard.

Answer:

The area of the cardboard \(=\)

i^{i} - i i - i

square units.

[Note: Insert answer as per the order of the suitable identity.]

Did you find an error?