Math, asked by priyanka9986, 1 year ago

1 / root7-root5 find it​

Answers

Answered by Devrath2003
12

Step-by-step explanation:

1/√7-√5

  1. MULTIPLYING BY √7+√5 TO BOTH NUMERATOR AND DENOMINATOR TO RATIONALISED DENOMINATOR.(1/√7-√5)×(√7+√5/√7+5).
  2. √7+√5/√7-√5×√7+√5
  3. √7+√5/(√7)^2-(√5)^2
  4. √7+√5/7-5
  5. √7+√5/2 <-------- ANSWER,HOPE IT WILL HELP TO GET GOOD MARKS IN EXAMINATION.

Answered by aerotech544
2

Answer:

1/√7-√5

MULTIPLYING BY √7+√5 TO BOTH NUMERATOR AND DENOMINATOR TO RATIONALISED DENOMINATOR.(1/√7-√5)×(√7+√5/√7+5).

√7+√5/√7-√5×√7+√5

√7+√5/(√7)^2-(√5)^2

√7+√5/7-5

√7+√5/2 <-------- ANSWER,HOPE IT WILL HELP TO GET GOOD MARKS IN EXAMINATION.

Step-by-step explanation:

1/√7-√5

MULTIPLYING BY √7+√5 TO BOTH NUMERATOR AND DENOMINATOR TO RATIONALISED DENOMINATOR.(1/√7-√5)×(√7+√5/√7+5).

√7+√5/√7-√5×√7+√5

√7+√5/(√7)^2-(√5)^2

√7+√5/7-5

√7+√5/2 <-------- ANSWER,HOPE IT WILL HELP TO GET GOOD MARKS IN EXAMINATION.

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