1.

If a=5–√+15–√−1b = 5–√−15–√+1then the value of(a2+ab+b2a2−ab+b2) is = ?If a=5+15−1b = 5−15+1then the value of(a2+ab+b2a2−ab+b2) is = ?

A. 3/4
B. 4/3
C. 3/5
D. 5/3
Answer» B. 4/3


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