Square root of (8 + 2√5)

(a) (√5 + √2)
(b) (√3 + √2)
(c) (√5 + √3)
(d) 2√3 + 5√5)

Anurag Mishra Professor Asked on 8th March 2016 in Maths.
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1 Answer(s)

Answer:

Solution:-
Taken option (c) √5 + √3
Square of (√5 + √3)
(√5 + √3)² = (√5)²  + (√3)² + 2 x √5 x √3
= 5 + 3 + 2√15
= 8 + 2√15

Anurag Mishra Professor Answered on 9th March 2016.
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