What is the value of

Question

Lina20 [59]

3 years ago

11

What is the value of

rt{81} " align="absmiddle" class="latex-formula">

Mathematics

2 answers:

vovangra [49] · Answer 1 · 2022-07-11T21:15:28+03:00

vovangra [49]3 years ago

7 0

9

9x9= 81 hope this helps

Digiron [165] · Answer 2 · 2022-07-11T23:04:57+03:00

Digiron [165]3 years ago

3 0

Answer:

81

=

9

⋅

9

then the square root of

√

81

=

9

.

Because the double multiplication for the same sign is always positive, the square root is also valid with the other sign

81

=

(

−

9

)

⋅

(

−

9

)

then

√

81

=

−

9

and we can say that

√

81

=

±

9

.