Applications of Derivatives Test

Result

Applications of Derivatives Test - 68

Score
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out of -
Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

The minimum value of the value of the function 2 cos 2x – cos 4x in 0 ≤ x ≤ π is

A
0

B
1

C

D
–3

Solution
Question 2
4 / -1

A

B

C

D

Solution
Question 3
4 / -1

A

B

C

D

Solution
Question 4
4 / -1

A
120

B
–120

C
52

D
128

Solution
Question 5
4 / -1

A

B

C

D

Solution
Question 6
4 / -1

A

B

C
5

D
0

Solution
Question 7
4 / -1

If from a wire of length 36 metre a rectangle of greatest area is made, then its two adjacent sides in metre are

A
6, 12

B
9, 9

C
10, 8

D
13, 5

Solution
Question 8
4 / -1

A
0

B
1

C
2

D
3

Solution
Question 9
4 / -1

The minimum value of the function y = 2x³ – 21x² + 36x – 20 is

A
–128

B
–126

C
–120

D
None of these

Solution
Question 10
4 / -1

The sum of two non – zero numbers is 4. The minimum value of the sum of their reciprocals is

A

B

C
1

D
None of these

Solution