Solve the inequality -
x⁴ -2x² -63 ≤ 0
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Answered by
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★ INEQUALITIES ★
IN Given function :
x² → t
t² -2t -63 ≤ 0
Now resolution into factors :
t² - 9t + 7t - 63 ≤ 0
NOW , clearly we can obtain the domain definition and range
aslike :
x ∈ [ -3 , 3 ]
★✩★✩★✩★✩★✩★✩★✩★✩★✩★✩★
IN Given function :
x² → t
t² -2t -63 ≤ 0
Now resolution into factors :
t² - 9t + 7t - 63 ≤ 0
NOW , clearly we can obtain the domain definition and range
aslike :
x ∈ [ -3 , 3 ]
★✩★✩★✩★✩★✩★✩★✩★✩★✩★✩★
Answered by
1
Step-by-step explanation:
let x^2 = t .............in the pic continue swipe pic
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