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Question : 1 of 160
Marks:
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Solution:
{x∈R∕‌| √|x|2−2|x|−8 |
| log(2−x−x2) |
‌ is a real number ‌} {x∈R∕‌| √x2−2x−8 |
| log(2+x)(1−x) |
‌ is a real number ‌} ={x∈R∕‌| √(x−4)(x+2) |
| log{(2+x)(1−x)} |
‌ is a real number ‌} =
φ
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