Question

when the denominator of 1/2√5 is rationalized ,it become √k/10 ,find k​

Answer 1

Answer:

k = 5

Step-by-step explanation:

rationalizing 1/2√5

1/2√5×√5/√5

= (1×√5)/2×5 [√5×√5 = 5]

= 1√5/10

= √5/10

comparing √5/10 with √k/10

from here we can see that,

k = 5

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