Question

if√5=2.236 find the value of 2/√5+√3​

Answer 1

Step-by-step explanatio

Given √5=2.236

2/√5+√3

={2/(√5+√3)}×{(√5-√3)/(√5-√3)}

=2√5-2√3/(√5)^2-(√3)^2

=(2×2.236-2×1.732)/5-3

=(4.472-3.464)/2

=1.008/2

=0.504

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Answer 2

√5=2.236 (given)

solution:

2/√5 + √3

2+√15

_________ (. √3×√5=√15)

√5

2+3.872

--------------------. ( √15 = 3.872)

2.236

5.872

__________. point to point cancel

2.236

=2.626

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