Question

10. Find the value of a and b √7-1 upon √7+1 -√7+1 upon √7-1 = a+b√7​

Answer 1

Answer:

a= 0 ,b= -2/3

Step- by - step Explanation:

√7 -1 / √7 +1 -√7 +1 /√7 -1 = a+ b+ √7

=> ( √7-1)²- ( √7 +1) (√7 -1) = a+b+√7

=> 7 +1-2√7-7-1 -2√7/(√7)²- 1²= a+b+√7

=> 7 + 1 - 2 √7 - 7 - 1 -2√7 / (√7)² - 1² = a+b+√7

=> 0 + - 2√7 /3 = a+b+√7

So , from the above question

We can find ,

• a = 0 and -2 √7/3 = b√7

• • b= -2/3

Hope It's help you..

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