Question

plzzz give me the solutions of these two questions...i will mark Ur ans as brainelist....only 3 nd 4 , I hope u all r so good so u will help me it's so urgent...

Answer 1

its simple


given      question I found  to be wrong

     1/ 3-√8  -  1/√8 - √7 + 1/ √7 - √6  + 1/√6 - √5 + 1/√5 - 2

it should be :  1/3-√8 - 1/√8 - √7 + 1/√7 - √6  - 1/√6 - √5 + 1/ √5 - 2

then on rationalising all terms

  3+√8/9-8  -  (√8 + √7) / 8 - 7   +  √7 + √6/ 7-6   -  (√5 + 2 )/ 5-2

⇒    3+2/1 =  5 


now for ques 2) refer to file attached



hope you'll get my solution


if helpful ,  mark brainliest