Question 23 from UPSC CSAT 2018 - CSAT

Question

If  $X$  is between  $-3$  and  $-1$ , and  $Y$  is between  $-1$  and  $1$ , then  $X^2 - Y^2$  is in between which of the following?

IASCODEX · Accepted Answer

Correct Option: D. $0$  and  $9$

Strategy: No strategy provided.

Key Info: No additional info.

IASCODEX · Answer

Option A: $-9$  and  $1$

IASCODEX · Answer

Option B: $-9$  and  $-1$

IASCODEX · Answer

Option C: $0$  and  $8$

If XXX is between −3-3−3 and −1-1−1 , and YYY is between −1-1−1 and 111 , then X2−Y2X^2 - Y^2X2−Y2 is in between which of the following?