Question

simplify the following

Answer 1

{4+√5}/{4-√5} + {4-√5}/{4+√5}

» {4+√5}/{4-√5} × {4+√5}/{4+√5} + {4-√5}/{4+√5} × {4-√5}/{4-√5}

» {4+√5}²/{4-√5}{4+√5} + {4-√5}²/{4+√5}{4+√5}

» 4²+√5²+2(4)(√5)/(4²-√5²) + 4²+√5²-2(4)(√5)/(4²-√5²)

» (16+5+8√5)/11 + (16+5-8√5)/11

» {21+8√5+21-8√5}/11

» 42/11

hope it helps……