91Ó°ÊÓ

Q. 251

Page 1076

Evaluate the expression :

$\left(5\sqrt{2d^7}\right)\left(3\sqrt{50d^3}\right)$.

Q. 252

Page 1076

Evaluate the expression.

$\left(4\sqrt{6t^2}\right)\left(3\sqrt{3t^2}\right)$.

Q. 253

Page 1076

Evaluate the expression :

$\left(3\sqrt{4y^4}\right)\left(3\sqrt{9y^5}\right)$.

Q. 254

Page 1076

Evaluate the expression :

$\left(-2\sqrt{7z^3}\right)\left(3\sqrt{14z^8}\right)$.

Q. 255

Page 1076

Simplify :

$\left(4\sqrt{2k^5}\right)\left(-3\sqrt{32k^6}\right)$.

Q. 256

Page 1076

Evaluate the expression.

${\left(\sqrt{7}\right)}^2$.

Q. 257 - Exercises

Page 1076

In the following question, simplify.

(a)${\left(\sqrt{11}\right)}^2$ (b) role="math" localid="1648107850137" ${\left(-\sqrt{21}\right)}^2$

Q. 258 - Exercises

Page 1076

In the following question, simplify.

(a)${\left(\sqrt{19}\right)}^2$ (b)${\left(-\sqrt{5}\right)}^2$

Q. 259 - Exercises

Page 1076

In the following question, simplify.

(a)${\left(\sqrt{23}\right)}^2$ (b)${\left(-\sqrt{3}\right)}^2$

Q 26.

Page 1041

Approximate Square Roots:$\sqrt{21}$