XXI ___ 29.
When a Roman numeral with the larger value is on left, we add the values together. ∴XXI = 10+ 10 + 1 = 21
But, 21 is less than 29. Therefore, XXI is less than 29.
Fill in the blank with > or < :
XXI ______ 29
Question 92 (xxi)
Factorise the following using the identity a2−b2=(a+b)(a−b).
p5−16p