1. a manufacturer reckons that the value of a machine , which costs him rs 15625, will depreciate each year by 20percant . find the estimated value at the end of 5 years

√33

Can't we prove theorem 8.5 using theorem 8.1 that states ' diagonal of a paralleogram divides it into two congruent triangles" ? 
I meant to say : 
1.Draw the diagonal
2.Based on given data, prove that 2 triangles are congruent. 
3.Atlast say " as the diagonal divides the given figure into two congruent triangles it is a paralleogram."
Is my method correct??

(B+c)cosb+c/2=acosB-c/2

Lim x¹⁵ - 1 / x¹⁰ - 1
x->1 

Equations of application of integrals

How to change units in tally as it is showing as ' not applicable ' in 'units ' head?

Sir,Does there is another way to solve this question??

Sir,is there is another way to solve this que2 from 9.2 

 

Sir, Does there is another way to solve Question 2 in short???

Prove that the quadrilateral formed by the internal angle bisector of any quadrilateral is cyclic 

Can there be infinite dimensions in space mathematically??

How can we take out the volume of a hypercube or a 4-D cube, a 5-D cube and a 6-D cube or a 7-D cube ???

If GST 3B does not have the ability to deposit its tax, then how will we file GSTR 3B in that condition?

PM of Russia when October revolution began? 

Find the number of terms in the expansion of {(x 3y)^2(9x^2 y^2-6xy)}^3

i have confusion regarding provision

when we debit P&l & when we debit EXP Please suggest  

In class 9,theorem 8.9that ABCDis not a triangle. You write it a triangle.

Company A is in Delhi, a supplier comes with exempted goods from UP and gives goods in Delhi office. So is it a local purchase or central purchase?

Class 11, 9.2 ,

Q no 16

how is 63*30 = 2040.

it is 1890