1.

Rationalize the following numberPlease answer it fast it is very urgent ​

Answer»

ANSWER:

GIVEN,

REQUIRED to RATIONALIZE,

\frac{5}{\sqrt{7} -3} \\=\frac{5}{\sqrt{7} -3} *\frac{\sqrt{7}+3 }{\sqrt{7}+3} \\=\frac{5(\sqrt{7}+3) }{(\sqrt{7} ^{2})-(3^{2})  }  \\=\frac{5(\sqrt{7}+3) }{49-9} \\=\frac{5(\sqrt{7}+3) }{40}\\= \frac{(\sqrt{7}+3) }{8}



Discussion

No Comment Found