1.

If 3 * 4 = 5 and 2 * 5 = √29, then the value of 6 * 8 is1. 142. √413. 104. None of the above

Answer» Correct Answer - Option 3 : 10

Given:

 3 * 4 = 5

 2 * 5 = √29

Calculations:

(32 + 42)1/2  = (9 + 16)1/2

⇒ (25)1/2 = 5 

(22 + 52)1/2  = (4 + 25)1/2

⇒ (29)1/2 = √29

In the same way

(62 + 82)1/2  = (36 + 64)1/2

⇒ (100)1/2 = 10 

 ∴ The required value is 10

It is in the form of Pythagoras theorem

a2 + b2 = c2 

\(\sqrt{a^2 + b^2} = c \)



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