Place value of 5 is Let’s write the decimal number`( 572*23, 5005, *4535, 24*52 ,105 21*451, 1005 32*3254)`

In the matrix A=[(2,5,19,-7),(35,-2,(5)/(2),12),(sqrt(3),1,-5,17)] , write: (i) The order of the matrix, (ii) The number of elements, (iii) Write the elements a_(13), a_(21), a_(33), a_(24), a_(23) .

Let us write the approximate values of the following fractions, upto 2,3 & 4 decimal places 22/7 .

Let us write the approximate values of the following fractions, upto 2,3 & 4 decimal places 3/14 .

Let us write the approximate values of the following fractions, upto 2,3 & 4 decimal places 47/57 .

The area of one of the walls of container is 3cm^2 . 10^23 Number of molecules are incident on it every second at an angle of 45^@ . What is the pressure exerted on the wall if the velocity of each molecule is 10^5 cm.s^-1 and it mass is 3.32 times 10^-24 g ?

Let us write the approximate values of the following fractions, upto 2,3 & 4 decimal places 1/5 .

Let A=([a_(i j)])_(3xx3) be a matrix such that AA^T=4Ia n da_(i j)+2c_(i j)=0,w h e r ec_(i j) is the cofactor of a_(i j)a n dI is the unit matrix of order 3. |a_(11)+4a_(12)a_(13)a_(21)a_(22)+4a_(23)a_(31)a_(32)a_(33)+4|+5lambda|a_(11)+1a_(12)a_(13)a_(21)a_(22)+1a_(23)a_(31)a_(32)a_(33)+1|=0 then the value of 10lambda is _______.

Let S={0,1,5,4,7} , number of subsets of S is 32QQ , then find the value of QQ.