Which expression is equivalent to (9^ -2 ) - Vidyadip

MCQ

Which expression is equivalent to $(9^{-2})$

A
$-81$
✓
$\frac{1}{81}$
C
$81$
D
$\text{None of these}$

✓

Answer

Correct option: B.

$\frac{1}{81}$

Now, $9^{-2}=\frac{1}{9^2}=\frac{1}{81}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q. [1 Marks Each]" from Exponents and Powers→Exponents and Powers — all question types→MATHS STD 7 question papers→Gujarat Board STD 7 question papers→Gujarat Board question paper generator→

Similar questions

The interest on ₹ 30000 for 3 yr at the rate of 15% per annum is

The solution of the equation $2m = 4$ is

$\frac{5}{4}-\frac{7}{6}-\frac{-2}{3}=$

8 ml is equal to

There are $40$ children in a class. $25\%$ like playing football. How many children like playing football?

$(-43) \times(-99)+43$ is equal to

The solution of the equation $x – 6 = 1$ is

If the diagonal of a rectangle is $17\ cm$ long and its perimeter is $46\ cm$, the area of the rectangle is:

Which of the following statement is false?

$a^{m} \times a^{n}=$