1.

The simplest value of (19–√−8–√−18–√−7–√+17–√−6–√−16–√−5–√)(19–√−8–√−18–√−7–√+17–√−6–√−16–√−5–√)=?(19−8−18−7+17−6−16−5)(19−8−18−7+17−6−16−5)=?

A. 3−5–√3−53−5–√3−53−5–√3−5–√3−5–√3−5–√3−5–√5–√555––√√3−5
B. 3
C. 5–√55–√55–√5–√5–√5–√5–√5–√555––√√5
D. 5–√−35−35–√−35−35–√−35–√−35–√−35–√−35–√5–√555––√√−35−3
Answer» B. 3


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