Question

The value of 9^1/5 × 9^2/5 / 9^1/3 ? please answer it class 9 maths​

Answer 1

Since the number 21 y5 is a multiple of 9.

So, the sum of its digits $2 + 1 + y + 5 = 8 + y$is a multiple of 9

$(8 + y)$is either 0 or 9 or 18 or...

Since y is a dlglt, so $(8 + y)$must be equal to 9

i.e., $8 + y = 9$

$= > y = 9 - 8 = 1$

Answer 2

Answer:

Since the number 21 y5 is a multiple of 9.

So, the sum of its digits 2 + 1 + y + 5 = 8 + y2+1+y+5=8+y is a multiple of 9

(8 + y)(8+y) is either 0 or 9 or 18 or...

Since y is a dlglt, so (8 + y)(8+y) must be equal to 9

i.e., 8 + y = 98+y=9

= > y = 9 - 8 = 1=>y=9−8=1

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Step-by-step explanation:

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