Math, asked by cutty30, 11 months ago

Solve all questions i make you brainlist​

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rishika76: you are in class 9th

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Answered by Anonymous
0

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Step-by-step explanation:

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Answered by dna63
1

Hey mate here is ur answers

1.)Two rational numbers btw,,-1,,&,,1/2, are-1/2,,&,,-3/2

2.)The Decimal form of,, 4/11 ,,is0.363636.....

3.)

 \frac{3 \sqrt{8} }{2 \sqrt{3} }  \\  =  \frac{3 \sqrt{8} }{2 \sqrt{3} } \times  \frac{2 \sqrt{3} }{2 \sqrt{3} }  \\  =  \frac{6 \sqrt{24} }{12}  \\  =  \frac{12 \sqrt{6} }{12}  \\  =  \sqrt{6}  \: ans...

4.)

( \frac{4}{5})7 \div ( \frac{5}{4} ) {}^{ - 5}  \\  = ( \frac{4}{5} ) {}^{7}  \div ( \frac{4}{5} ) {}^{5}  \\  = ( \frac{4}{5}) {}^{7 - 5}  \\  = ( \frac{4}{5} ) {}^{2}  \\  =  \frac{16}{25} ans...

5.)a=2,,b=3

Hence,,

(a) {}^{ - b}  + ( - b) {}^{ - a}  \\  = 2 {}^{ - 3}   +  \frac{1}{( - b ){}^{a} }  \\  =  \frac{1}{2 {}^{3} }  +  \frac{1}{( - 3) {}^{2} }  \\  =  \frac{1}{8}  +  \frac{1}{9}  \\  =  \frac{8 + 9}{72}  \\  =  \frac{17}{72}  \: ans...

Hope, it helps you.. plz mark it as Brainliest..

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