Surds and Indices Practice Test 1

© examsiri.com

Question : 37 of 40

Marks: +1, -0

The value of

{x^{-2}.y^{-4}}/{x^{-3}.y^{-1}}÷{y^{-2}/x^{-1}}

is:

y
$1 /y$
$x y$
$1/{ xy}$

Solution:

{x^{-2}.y^{-4}}/{x^{-3}.y^{-1}}÷{y^{-2}/x^{-1}}

={x^{-2}.y^{-4}}/{x^{-3}.y^{-1}}×{x^{-1}/y^{-2}}

=x^0y^{-1}=1/y

© examsiri.com

Go to Question:

Prev Question

Next Question