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Let  then, which of the follwing is not true ?
  • a)
    f(x) is monotonically increases in 
  • b)
    f(x) is monotonically decreases in 
  • c)
    f(x) is monotonically value of f(x) is  25/3
  • d)
    The minimum value of f(x) is 0
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Letthen, which of the follwing is not true ?a)f(x) is monotonically in...
we have 
clearly when
and f'(x) < 0
f is decreasing in 
Now at x = -1, sign of f changes from -ive to +ive
=> at x = -1, f has minimum.
=> min f = 0 at x = 4 also f has minimum.
=> only option (c) is not true.
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Most Upvoted Answer
Letthen, which of the follwing is not true ?a)f(x) is monotonically in...
we have 
clearly when
and f'(x) < 0
f is decreasing in 
Now at x = -1, sign of f changes from -ive to +ive
=> at x = -1, f has minimum.
=> min f = 0 at x = 4 also f has minimum.
=> only option (c) is not true.
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Community Answer
Letthen, which of the follwing is not true ?a)f(x) is monotonically in...
we have 
clearly when
and f'(x) < 0
f is decreasing in 
Now at x = -1, sign of f changes from -ive to +ive
=> at x = -1, f has minimum.
=> min f = 0 at x = 4 also f has minimum.
=> only option (c) is not true.
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Letthen, which of the follwing is not true ?a)f(x) is monotonically increases inb)f(x) is monotonically decreases inc)f(x) is monotonically value of f(x) is 25/3d)The minimum value of f(x) is 0Correct answer is option 'C'. Can you explain this answer? for Mathematics 2025 is part of Mathematics preparation. The Question and answers have been prepared according to the Mathematics exam syllabus. Information about Letthen, which of the follwing is not true ?a)f(x) is monotonically increases inb)f(x) is monotonically decreases inc)f(x) is monotonically value of f(x) is 25/3d)The minimum value of f(x) is 0Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mathematics 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Letthen, which of the follwing is not true ?a)f(x) is monotonically increases inb)f(x) is monotonically decreases inc)f(x) is monotonically value of f(x) is 25/3d)The minimum value of f(x) is 0Correct answer is option 'C'. Can you explain this answer?.
Solutions for Letthen, which of the follwing is not true ?a)f(x) is monotonically increases inb)f(x) is monotonically decreases inc)f(x) is monotonically value of f(x) is 25/3d)The minimum value of f(x) is 0Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mathematics. Download more important topics, notes, lectures and mock test series for Mathematics Exam by signing up for free.
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