Find the value of each of the following-i -72ii -34iii -55

We know that if #39;a #39; is natural number, then ( minus;a)even number = Positive number ( minus;a)odd number nbsp; = Negative number We have (i) ...

You visited us 4 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VII

Mathematics

Multiplication of Integers

Find the valu...

Question

Find the value of each of the following:
(i) (−7)²
(ii) (−3)⁴
(iii) (−5)⁵

Open in App

Solution

We know that if 'a' is natural number, then
(−a)^{even number} = Positive number
(−a)^{odd number}= Negative number

We have
(i) (−7)² = −7 × −7 = 49
(ii) (−3)⁴ = −3 × −3 × −3 × −3 = 81
(iii) (−5)⁵ = −5 × −5 × −5 × −5 × −5 = −3125

Suggest Corrections

Similar questions

Q. Find the value of each of the following:
(i) 13²
(ii) 7³
(iii) 3⁴

Q. Find the value of each of the following:
(i)

{(\frac{- 1}{2})}^{2} \times 2^{3} \times {(\frac{3}{4})}^{2}

(ii)

{(\frac{- 3}{5})}^{4} \times {(\frac{4}{9})}^{4} \times {(\frac{- 15}{18})}^{2}

Q. Find the value of each of the following:

(i) 8⁰
(ii) (−3)⁰
(iii) 4⁰ + 5⁰
(iv) 6⁰ × 7⁰

Q. Find the principal values of each of the following:

(i)

\cot^{- 1} (- \sqrt{3})

(ii)

\cot^{- 1} (\sqrt{3})

(iii)

\cot^{- 1} (- \frac{1}{\sqrt{3}})

(iv)

\cot^{- 1} (\tan \frac{3 π}{4})

Q. Question 14
Without actually calculating the cubes, find the value of each of the following:

(i) (- 12)^{3} + (7)^{3} + (5)^{3}

(i i) (28)^{3} + (- 15)^{3} + (- 13)^{3}

Join BYJU'S Learning Program

Find the value of each of the following: (i) (−7)2 (ii) (−3)4 (iii) (−5)5

We know that if 'a' is natural number, then (−a)even number = Positive number (−a)odd number = Negative number We have (i) (−7)2 = −7 × −7 = 49 (ii) (−3)4 = −3 × −3 × −3 × −3 = 81 (iii) (−5)5 = −5 × −5 × −5 × −5 × −5 = −3125

Find the value of each of the following:
(i) (−7)²
(ii) (−3)⁴
(iii) (−5)⁵

We know that if 'a' is natural number, then
(−a)^{even number} = Positive number
(−a)^{odd number}= Negative number

We have
(i) (−7)² = −7 × −7 = 49
(ii) (−3)⁴ = −3 × −3 × −3 × −3 = 81
(iii) (−5)⁵ = −5 × −5 × −5 × −5 × −5 = −3125