R s aggarwal mathematics class 7 Solutions for Chapter 5 exponents

Exercises in Chapter 5 exponents Grade 7

Exponents Exercise 5A

Exponents Exercise 5B

Exponents Exercise 5C

Questions in Exponents Exercise 5A

Write the following in power notation:

(5/7) ×(5/7) × (5/7) × (5/7)

Write the following in power notation:

(-8) ×(-8) × (-8) × (-8) × (-8)

Write the following in power notation:

(-32/243)

Write the following in power notation:

(-1/128)

Write the following in power notation:

(-27/64)

Express

the following into a rational number:

$(-8/5)^3$

Express

the following into a rational number:

$(-4/7)^3$

Express

the following into a rational number:

$(-1/2)^5$

Express

the following into a rational number:

$(-13/11)^2$

Express

the following into a rational number:

$(1 / 3)^{-1}$

Express

the following into a rational number:

$(-2 / 3)^{-1}$

Find

the reciprocal of the following:

$(3/8)^4$

Find

the reciprocal of the following:

$(-5 / 6)^{11}$

Find

the reciprocal of the following:

$(6)^7$

Find the value of the following:

$4^{0}+5^{0}$

Simplify the following and express as a rational number:

$(-1 / 2)^{5} \times 2^{3} \times(3 / 4)^{2}$

Simplify the following and express as a rational number:

$(3 / 2)^{4} \times(1 / 5)^{2}$

Simplify the following and express as a rational number:

$\left\{(-3 / 4)^{3}-(-5 / 2)^{3}\right\} \times 4^{2}$

Simplify the following and express as a rational number:

$(2 / 3)^{2} \times(-3 / 5)^{3} \times(7 / 2)^{2}$

Simplify and express as a rational number:

$(4 / 9)^{6} \times(4 / 9)^{-4}$

Simplify and express as a rational number:

$(-7 / 8)^{-3} \times(-7 / 8)^{2}$

Express the following as a rational number:

$5^{-3}$

Express the following as a rational number:

$(-3 / 4)^{-3}$

Express the following as a rational number:

$(5 / 7)^{-1} \times(7 / 4)^{-1}$

Express the following as a rational number:

$(23 / 25)^{0}$

Questions in Exponents Exercise 5B

Express the following number in standard form:

23000000

Express the following number in standard form:

538

Express the following number in standard form:

Diameter of Earth = 12756000 m

Questions in Exponents Exercise 5C

Mark tick against the correct answer:

$\left(5^{-1} \times 3^{-1}\right)^{-1}$

(a)(1/15) (b)(-1/15) (c) 15 (d)-15

Mark tick against the correct answer:

$(1 / 2)^{-2}+(1 / 3)^{-2}+(1 / 4)^{-2}=?$

(a)(61/144) (b) 29 (c) (144/61) (d) none of these

Mark tick against the correct answer:

$\left\{6^{-1}+(3 / 2)^{-1}\right\}^{-1}$

(a)(2/3) (b)(5/6) (c)(6/5) (d) None of these

Mark tick against the correct answer:

$(-1 / 2)^{-6}=?$

(a)-64 (b) 64 (c) (1/64) (d) (-1/64)

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Chapters in this book

Rational Numbers

Algebraic Expressions

Linear Equations in one variable

Ratio and Proportion

Profit and Loss

Simple Interest

Lines and Angles

Properties of Parallel Line

Properties of Triangles

Reflection and Rotational Symmetry

Three-Dimensional Shapes

Collection and Organisation of Data (Mean, Median, Mode)

lido-difference

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