1.

In the given questions, two equations numbered l and II are given. You have to solve both the equations and mark the appropriate answer.I. x2 = 49II. y2 – 16y + 63 = 01. x > y2. x ≤ y3. No relation in x and y or x = y4. x ≥ y5. x < y

Answer» Correct Answer - Option 2 : x ≤ y

Calculations:

From I,

x2 = 49

⇒ x = –7, 7 

From II,

y2 – 16y + 63 = 0

⇒ y2 – 9y – 7y + 63 = 0

⇒ y(y – 9) – 7(y – 9) = 0

⇒ (y – 9)(y – 7) = 0

Taking,

⇒ y – 9 = 0 or y – 7 = 0

⇒ y = 9 or y = 7

Comparison between x and y (via Tabulation):

X

y

Relation

–7

9

x < y

–7

7

x < y

7

9

x < y

7

7

x = y

 

x ≤ y.



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