Question

7 Which expression results in an irrational number? (1) \( \sqrt{3} \cdot \sqrt{3} \) (3) \( 5 \cdot \sqrt{81} \) (2) \( -\frac{2}{3}+\frac{1}{4} \) (4) \( \frac{1}{3}+\sqrt{3} \)

          7 Which expression results in an irrational number?
(1) \( \sqrt{3} \cdot \sqrt{3} \)
(3) \( 5 \cdot \sqrt{81} \)
(2) \( -\frac{2}{3}+\frac{1}{4} \)
(4) \( \frac{1}{3}+\sqrt{3} \)

7 Which expression results in an irrational number?
(1) √(3)·√(3)
(3) 5 ·√(81)
(2) -(2)/(3)+(1)/(4)
(4) (1)/(3)+√(3)

Added by Stephen C.

The IIT Foundation series of Mathematics Class

Trishna Knowledge Systems 5th Edition

Chapter 1

Instant Answer

Solved by Expert Keondre Parker

Step 1

- \(\sqrt{3} \cdot \sqrt{3} = 3\). - This is a rational number. Show more…

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7 Which expression results in an irrational number? (1) \( \sqrt{3} \cdot \sqrt{3} \) (3) \( 5 \cdot \sqrt{81} \) (2) \( -\frac{2}{3}+\frac{1}{4} \) (4) \( \frac{1}{3}+\sqrt{3} \)