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1
Answer:
6+3+2√18+1=10+6√2
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0
Answer:
x=√6+√5
x²=(√6+√5)²
=using identity=√6²+√5²+2(√6)(√5)
=6+5+2√30=11+2√30
1/x²=1/11+2√30×11-2√30/11-2√30=11-2√30/ (11)²-(2√30)²=11-2√30/ 121-120
=11-2√30/
121-120=1
=x²+1/x²=11+2√30+11-2√30
=121.................ans
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