1.

X= √( √ 5+1)/( √ 5-1) show that x^2-x-1=0

Answer» X=√√{(5+1)/(√5−1)}

=√{(√5+1)(√5+1)/(√5+1)(√5–1)} (MULTIPLY by (√5+1)

=√{(√5+1)^2/4}

=(√5+1)/2.


then the keep VALUE of x in equation x SQUARE - x - 1 = 0


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