(i) √(100x⁴ + 125x⁴) + 7x + 2 = −4x (ii) ∛(64y³) × 2y + 19y + 7² = −3y +…
IBPS · 2022
(i) √(100x⁴ + 125x⁴) + 7x + 2 = −4x
(ii) ∛(64y³) × 2y + 19y + 7² = −3y + 1600^(1/2)
If the smallest root of equation (ii) is multiplied by 4/5, it equals Z, then which of the following statement/s is/are true?
(A) Z < −2
(B) 2/7 > Z × (−4/27)
(C) Z is less than the largest root of equation (i)
- A.
Only (B)
- B.
Both (B) & (C)
- C.
Only (C)
- D.
Both (A) & (B)
- E.
Only (A)
Attempted by 13 students.
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Correct answer: B
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