if x= (4-√15). find the value of ( x^2+1/x^2)
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[(4 - ✓ 15 ^2) + 1 / (4 - ✓ 15 ^2)]
POWER CUT SQUARE ROOT
4 - 15 + 1 / 4 - 15
-11 + 1 / -11
TAKE LCM
-11/1 + 1/ -11
121 + 1 / -11
122 / -11
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