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Numerical Ability
Algebra
the square root of 3 + “5 is :
Read Solution (Total 1)
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- (3 + √5)^1/2. Now modify the term inside the bracket. Multiply numerator and denominator both by 2.
=[(6 + 2√5)/2]^1/2
It can also be written as shown below.
=[(1 + 2√5 + 5)/2]^1/2
=[(1 + √5)^2 / 2]^1/2
=(1 + √5)/√2
=1/√2 + √5/√2 (ANSWER) - 10 years agoHelpfull: Yes(1) No(0)
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