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5 votes
Estimake square root of 11. ?

User CephBirk
by
4.9k points

2 Answers

4 votes

Answer:

3.3164 correct to four decimal places

Explanation:

WE USE BINOMIAL THEOREM.

√11=√(10+1)=(10 + 1)^½

FACTOR TEN OUT

=> 10^½(1 +1/10)^½

WE KNOW THAT:

(1 +X) ^n= 1 + nX + [n(n -1)(x)²]/2! + .........

NOW LET X =1/10 AND n= ½

SUBSTITUTING INTO THE FORMULA ABOVE

=>(1/10)^½ [1 + (½)(1/10) +[½(½ –1)(1/10)^½]/2×1 + ......]

=(1/10)^½[1 + 1/20–1/800 +......]

=> (1/10)^½(839/800)

≈3.3164

THEREFORE √11 ≈ 3.3164( ESTIMATED)

User Odelu
by
5.1k points
3 votes

Answer:

11 not have root

Explanation:

beause it is the prime number MARKE AS BRILLIANT

User Jon Clements
by
4.9k points