Question 11
SurdsFind the positive square root of 7 − 2√10
- A.√5 − √2
- B.√5 + √2
- C.√2 − √5
- D.3
Show the answer and explanation
Answer: A (√5 − √2)
Explanation
(√5 − √2)² = 7 − 2√10, and √5 − √2 is positive.
Find the positive square root of 7 − 2√10
Answer: A (√5 − √2)
(√5 − √2)² = 7 − 2√10, and √5 − √2 is positive.