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Question : 15 of 75
Marks:
+1,
-0
Solution:
‌d=|‌|=‌‌−=+2−2‌×=|| ‌‌‌=(3−4α)−(−2)+(2α−3)‌(−)⋅|×|=3−4α+4−4α+6‌=13−8α‌|‌| 13−8α |
| √(3−4α)2+4+(2α−3)2 |
|=‌ ‌|‌| 13−8α |
| √20α2−36α+22 |
|=‌‌=6(13−8α)2=25(20α2−36α+22)‌=116α2+348α−464=0‌‌ Sum of roots ‌=−3
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