i need more

how many did i get

5 ques is it okay

hmm plzzzzzzzzzz give me yar

thq adithya

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i need more

how many did i get

5 ques is it okay

hmm plzzzzzzzzzz give me yar

thq adithya

Log in to add a comment

soln:x=2+√3

1/x=1/2+√3=2-√3

x-1/x=2+√3-(-2-√3)=2√3

(x-1/x)²=(2√3)³=24√3

2.If x=3-2√2 find x²-1/x²

soln:x=3-2√2

x²=(3-2√2)²=17-12√2

1/x²=1/17-12√2=17+12√2

x²-1/x²=17-12√2-(17+12√2)=-24√2

3.rationalise the denominator: 5/3-2√5

soln:5/3-2√5×3+2√5/3+2√5=-15-10√5/11

4.express 0.131313...in the form p/q where p and q are integers and q≠0

soln:let x=0.1313..

100x=13.1313..

100x=13+0.1313

100x=13+x

100x-x=13

99x=13

x=13/99

5.write 4 rational nos btw 1/5 and 2/5

soln:1/5×5/5=5/25

2/5×5/5=10/25

therefore four rational nos btw 1/5 and 2/5 are 6/25,7/25,8/25,9/25