Question

rationalise the denominator 5/2√8
Solve this

last question was deleted

so jisne bhi answer diya thanks

dubara answr krna​

Answer 1

Answer:

Rationalizing is the process to make the denominator surd free It means that no root remains in that.

The prescribed process of rationalizing is to multiply the number which is equal to denominator but inverse in sign, to both the Numerator and denominator.

So,

We have a number 1/(8 + 5sqrt(2)) - (1(8 - 5sqrt(2)))/((8 + 5sqrt(2))(8 - 5sqrt(2))) = 8-5 sqrt 2 (8^ 2 )-(5 sqrt 2 )^ 2 using the formula (x + y)(x - y) =x^ 2 +y^ 2

= 8-5 sqrt 2 64-50

= 8-5 sqrt 2 14 (ans)

Explanation:

Here's your answer Mate

Answer 2

Answer:

Explanation:

=> 8/√5

=> (8/√5) × (√5/√5)

8√5/5

thus correct answer is ( 8√5/ 5)