Ncert solutions

Ncert solutions

Grade 8

Exponents and Powers | Exercise 12.1

Question 1

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Question 1

Q1) Evaluate.

(i) 3^{-2}

(ii) \left(-4\right)^{^{-2}}

(iii) \left(\frac{1}{5}\right)^{-5}

Solution 1:

(i) = \frac{1}{3^2}

=\frac{1}{9}

(ii) \frac{1}{\left(4\right)^2}

=\frac{1}{16}

(iii) \left(2\right)^5

=32

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