Question

simplify
Std 9th maths . pls help me guys
Today is my maths exam i need your help guyss.​

Answer 1

Step-by-step explanation:

$( {3}^{10} \div {3}^{7} ) \times {3}^{ - 5}$

${3}^{10 - 7} \times {3}^{ - 5}$

${3}^{3} \times {3}^{ - 5}$

${3}^{3 + ( - 5)} = {3}^{ - 2} = (\frac{1}{3} )^{2} = \frac{1}{9}$

lol, I am of Grade 8

Answer 2

Answer:

$\Large \frac{1}{9}$

Step-by-step explanation:

$→\Large( {3}^{10} \div {3}^{7} ) \times {3}^{ - 5}$

$→ \Large( {3}^{10 - 7} ) \times {3}^{ - 5}$

$→ \Large {3}^{3} \times {3}^{ - 5}$

$→\Large {3}^{3 + ( - 5)}$

$→\Large {3}^{3 - 5}$

$→ \Large {3}^{ - 2}$

$→ \Large \green{ \boxed{ \frac{1}{9} }}$