CUET · MATHS · PYQ PAPER 2023
If the function \(f(x)=x^4-62 x^2+a x+9\) attains its local maximum value at \(x=1\), then \(a\) is equal to :
- A 120
- B 110
- C 100
- D 90
Answer & Solution
Correct Answer
(A) 120
Step-by-step Solution
Detailed explanation
\(f'(x) = 4x^3 - 124x + a\) \(f'(1) = 4(1)^3 - 124(1) + a = 0\) \(4 - 124 + a = 0\) \(-120 + a = 0\) \(a = 120\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from MATHS
- For the given values 8, 10, 12, 14, 16, the three-year moving averages are:CUET 2025 Easy
- If \(\int_0^1 \frac{a \sqrt{x} d x}{\left(x^{3 / 2}+1\right)}=1\), then \(a\) is equal to:CUET 2023 Easy
- A solenoid with \(2 \times 10^4\) turns per meter, diameter 0.1 m , has a coil of 100 turns and 0.01 m radius placed inside. If solenoid current decreases from 4 A to 0 in 0.05 s , total charge through coil is :CUET 2024 Hard
- The derivative of \(\frac{\tan ^{-1} x}{1+\tan ^{-1} x}\) with respect to \(\tan ^{-1}\) is :CUET 2023 Medium
- The probability of guessing correctly atleast 8 out of 10 answers on a true false type examination is :CUET 2023 Medium
- The common region determined by all constraints of a Linear programming problem is called:CUET 2023 Medium
More PYQs from CUET
- Arrange the following steps of the Hershey and Chase experiment in correct sequence:
(A) Labelling of some bacteriophages with radioactive phosphorus and some with radioactive sulfur.
B) Agitating in blender followed by centrifugation.
(C) Infecting E. coli in two batches with two differently labelled bacteriophages.
(D) Identification of radioactivity in supernatant and sediment
Choose the correct answer from the options given below:CUET 2023 Hard - Charge on a conducting metal sphere is present :CUET 2023 Easy
- Read the passage and answer the question given below.
When a host is exposed to antigens, which may be in the form of living or dead microbes or other proteins, antibodies are produced in the host body. This type of immunity is called active immunity. Active immunity is slow and takes time to give its full effective response. Injecting the microbes deliberately during immunisation or infectious organisms gaining access into body during natural infection induce active immunity. When antibodies are directly given to protect the body against foreign agents, it is called passive immunity.
Match List I with List IILIST I LIST II A. Physical Barrier I. Saliva B. Cellular Barrier II. Interferons C. Physiological Barrier III. Skin D. Cytokine Barrier IV. Polymorpho-nuclear leukocytes
Choose the correct answer from the options given below:CUET 2023 Easy - What do you understand by termolecular reactions:CUET 2025 Medium
- Match List-I with List-II
List-I(Stages of Human Evolution) List-II (Characteristics) (A) Ramapithecus (I) Lived in East African grasslands (B) Australopithecus (II) Lived near East and central Asia (C) Homo habilis (III) Hairy and walked like gorillas (D) Neanderthal Man (IV) First human like being
Choose the correct answer from the options given below:CUET 2025 Easy - Match List I with List II
Choose the correct answer from the options given below:LIST I LIST II A. Serotonin I. Antihistamine B. Phenelzine II. Antibiotic C. Terfenadine III.Tranquilizer D. Vancomycin IV. Anti depressant drug CUET 2023 Medium