Question

1 / root7-root5 find it​

Answer 1

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.

Answer 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.