Math, asked by urvi6696, 11 months ago

plz answer me please

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Answered by khushbu7863

1

Step-by-step explanation:

X=4+√15 ,X2=16+15+8√15. 31+√15 . 1/X2=1/31+√15 , 1/X 2=31-√15 / 961-15=31-√15/946. X2+1/X2 =31+√15+31-√15/946=31+31/946=62/946

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