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Find out uncountable nouns in the following questions:

Little knowledge is always dangerous and we must strive to reach the depth.

  • Option 1)

    Little

  • Option 2)

    Knowledge

  • Option 3)

    Dangerous

  • Option 4)

    depth

  • Option 5)

    Always

Knowledge cannot be pluralized with an ‘s’ or ‘es’. Thus, it qualifies to be uncountable noun

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Posted by

rishi.raj

Let \alpha and \beta   be the roots of equation

x^{2}-6x-2=0.\; if a_{n}=\alpha ^{n}-\beta ^{n},\; for\: n\geq 1,\; then\; the \: value\; of\; \frac{a_{10}-2a_{8}}{2a_{9}}

is equal to:

  • Option 1)

    6

  • Option 2)

    -6

  • Option 3)

    3

  • Option 4)

    -3

a

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Posted by

Srilatha chavan

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In the given circuit diagram, the currents, I1 = -0.3 A, I4 = 0.8 A and I5 = 0.4 A, areflowing as shown. The currents I2 , I3 and I6 ,respectively, are :

 

Kirchoff's first law -

\sum i=0

i_{1}+i_{3}=i_{2}+i_{4}

- wherein

 

Apply Kcl at Q

I6+I3 = I1+ I2   .........(1)

I1 = 0.3A

I4 = 0.8A

I5 = 0.4A

KCL at 5

I4= I5 +I3

I3 = I4 - I5

    = 0.8 +0.4

    =0.4A

KCL at R

I1+I2 = I4

I2 = I4 - I1

    = 0.8 - (-0.3)

    =1.1A

From equation (1)

I6 + I3 = I1+ I2

I6 = I1 + I2 - I3

    = -0.3+1.1 -0.4

    =0.4A

I2 = 1.1A

I3 = 0.4A

I6 = 0.4A

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Posted by

Abhishek Sahu

Identify which set of figures follows the rule

SORRY A CORECTIONIN MY ANS - CIRCLE GETS CLOSED , BY MISTAKE I TYPED OPENED

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Posted by

Jaswanth Reddy bora

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OPTION C, CHECK FOR SYMMETRY

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Posted by

Jaswanth Reddy bora

  1. 121

  2. 61

  3. 74

  4. 101

This is  the figure.

 

The correct answer should be 121. As the logic here is , the outer circle figures should be added and their perfect square should be there in the inner circle. I.e. (2+6=8) and the 8^2=64. Hence, (8+3=11) and its perfect square is 121.

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Posted by

neha

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  1. Has been taught

  2. Is taught

  3. Is being taught

  4. Has been teaching

4

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Posted by

Avantika banode

  1. Sri Lanka

  2. Bangladesh

  3. Pakistan

  4. Singapore

The correct answer option is 4 i.e. Singapore as except Singapore , rest 3 countries lie on India’s sub continent.

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Posted by

neha

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A.The reasons why piracy flourishes are two.

B. The problem is not with the laws but with enforcement.

C. Somehow they still do not realize the seriousness of the crime or its economic ramifications.

D. I have been a part of a drive against copyright theft for over two decades now.

E. The first is the lack of awareness amongst the enforcement agencies.

  1. ADBCE

  2. AECBD

  3. DBAEC

  4. ABDEC

The correct option will be option 3. After reading the sentences, it should be clear that AE should definitely come after each other because they form a pair. There are two options which suffice this i.e. 2 and 3. Now, starting with D helps to locate the topic on which these lines have been written i.e. copyright theft and A states the reason.

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Posted by

neha

  1.  -5
  2. 6
  3. 1
  4. -3

Volume of parallelopiped, V = \left ( \vec a \times \vec b \right ). \vec c

Here \vec a = -12i+\lambda k

\vec b = 3j - k

and, \vec c = 2i+j-15k

\vec a \times \vec b = \begin{bmatrix} i & j & k \\ -12 & 0 & \lambda \\ 0& 3 & -1 \end{bmatrix}

\Rightarrow \vec a \times \vec b = -3\lambda i -12j -36k

V = \left ( -3\lambda i -12j -36k \right ).(2i+j-15k) = -6\lambda -12 +540 = -6\lambda +528

Given that V is 546, put it in the above equation.

546 = -6\lambda +528

\Rightarrow \lambda =-3

Option (4) is correct

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Posted by

Abhishek Sahu

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