Math, asked by nikhil750, 9 months ago

Rationalise the denominator 4/

4 − √7

Answers

Answered by ToxicEgo

0

Answer:

4/4-√7

Conjugate of 4-√7=4+√7

Therefore,

→4/4-√7×4+√7/4+√7

→4(4+√7) /(4-√7) (4+√7)

→16+4√7/4(4+√7/-√7(4+√7)

→16+4√7/16+4√7-4√7-7

→16+4√7/16-7

→16+4√7/9

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