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Recent questions tagged 197

If $\overrightarrow{a}, \overrightarrow{b}, \overrightarrow{c}$ are unit vectors such that $\overrightarrow{a} + \overrightarrow{b} + \overrightarrow{c} = 0$. Then $\overrightarrow{a}. \overrightarrow{b} + \overrightarrow{b}. \overrightarrow{c} + \overrightarrow{c} . \overrightarrow{a}$ is equal to :

asked Dec 19, 2018 by pady_1

1 answer

The approximate value of $\begin{align} \int_{-3}^3 x^4 \;dx \end{align}$, using trapezoidal rule and taking six equal intervals, is :

asked Dec 19, 2018 by pady_1

0 answers

If the point $[x_1 + t(x_2 - x_1), y_1 + t(y_2-y_1)]$ divides the join of the $(x_1,y_1)$ and $(x_2,y_2)$ internally, then :

asked Dec 19, 2018 by pady_1

0 answers

In a triangle $ABC$, $\frac{\cos C + \cos A}{c+a} + \frac{\cos B}{b}$ is equal to :

asked Dec 11, 2018 by pady_1

0 answers

$\sin^2 \theta = \frac{4xy}{(x+y)^2}$ is true if and only is :

asked Dec 11, 2018 by pady_1

0 answers

If the pair of straight line $x^2 -2pxy - y^2 = 0$ and $x^2 - 2qxy - y^2 = 0$ be such that each pair bisects the angle between the other pair, then :

asked Dec 11, 2018 by pady_1

0 answers

The resistance of the series combination of two resistances is S. When they are joined in parallel through total resistance is P. If $S=nP$, then the minimum possible value of n is

asked Nov 5, 2018 by pady_1

0 answers

Measuring biochemical oxygen demand (BOD) is a method used for

asked Aug 20, 2018 by pady_1

1 answer

Given below is a sample of a portion of DNA strand giving the base sequence on the opposite strands. What is so special shown in it ? <br> 5' .............. GAATTC ................ 3' <br>3' .............. CTTAAG ................. 5'

asked Aug 16, 2018 by pady_1

1 answer

Stirred-tank bioreactors have been designed for –

asked Jul 26, 2018 by pady_1

1 answer

The genetic defect-adenosine deaminase (ADA) deficiency may be cured permanently by

asked Jul 26, 2018 by pady_1

2 answers

Electrons from excited chlorophyll molecule of photosystem II are accepted first by:

asked Jul 26, 2018 by pady_1

1 answer

Which one of the following pairs is mismatched ?

asked Jul 26, 2018 by pady_1

1 answer

Sickle cell anemia has not been eliminated from the African population because-

asked Jul 25, 2018 by pady_1

1 answer

According to IUCN Red List, what is the status of Red Panda (Ailurus fulgens) ?

asked Jul 24, 2018 by pady_1

0 answers

ELISA is used to detect viruses, where :-

asked Jul 24, 2018 by pady_1

1 answer

Gray spots of oat are caused by deficiency of : -

asked Jul 24, 2018 by pady_1

1 answer

There are three genes a, b and c. The percentage of crossing over between a and b is 20%, b and c is 28% and a and c is 8%. What is the sequence of genes on chromosome

asked Jul 23, 2018 by pady_1

1 answer

Forecomming generations are less adaptive than their parental generation due to : -

asked Jul 20, 2018 by pady_1

1 answer

Most of the mutations are :

asked Jul 20, 2018 by pady_1

1 answer

Effect of anaesthetics on body :

asked Jun 15, 2018 by pady_1

1 answer

Ashish's father gave him Rs.183 to spend. He spent Rs.53.27 to buy some toys and Rs.55.41 to buy some books. How much does he have left?

asked Dec 31, 2015 by pady_1

1 answer

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