RRB Group D Model Paper 6 with solutions

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Question : 27 of 99

Marks: +1, -0

If x = 3 and y = -1, find the value of

x^y + y^x

.

1/3
-1/3
2/3
-2/3

Solution:

(4) The given expression is

x^y + y^x

When x = 3 and y = -1

x^y + y^x

=

3^{-1}+(-1)^3

=

1/3

+ (-1)
=

1/3

- 1
= -

2/3

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