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Subject: Maths, asked on 27/4/19

If y=(cosx)^x + sin inverse root 3x find dy/dx

Subject: Maths, asked on 5/10/15

integrate :
(x3+1)/(x4+1)dx

Subject: Maths, asked on 2/7/15

integration of x root(x4-1)

Subject: Maths, asked on 13/3/15

A solid is formed by a cylinder of radius r and height h together with two hemisphere of radius r at each end. if the volume of the solid is constant but radius r is increasing at the rate of 1/2pie meter/ minute how fast mast h (height )be changing when r and h are 10 metres

Subject: Maths, asked on 15/4/14

If x = 4 1/3 + 4 -1/3 prove that 4x3-12x is given by a)12, b) 13 c) 15 d)17

Subject: Maths, asked on 14/4/13

(1-2x-3x2) / (3x-x2-5) >0 ;then what is the value of x?

Subject: Maths, asked on 15/11/14

hot to integrate the following:

(x10 - 1) divided by (x - 1)

Subject: Maths, asked on 25/7/15

if x/(x-y) = log(a/(x-y) )
prove that
dy/dx= 2 - x/y

Subject: Maths, asked on 28/4/20

Using matrix method, solve the system of linear equations by matrix method 5x+y-z=7,4x-2y-3z=5 and 7x+2y+2z=7

Subject: Maths, asked on 5/9/19

What is the integration of (e^mx)dx

Subject: Maths, asked on 21/4/17

Using (a-b)3 = a3 - b3 -3ab(a-b) then tick the correct of these when x = p1/3 - p-1/3
(a) x3 +3x = p+1/p  (b) x3+3x = p -1/p (c) x3+3x = p+1 (d) none of these

Subject: Maths, asked on 28/1/19

A machine costs Rs.520000 with an estimated life of 25 years. A sinking fund is created to replace it by a new model at 25% higher cost after 25 years with a scrap value realization of Rs.25000. What amount should be set aside every year if the sinking fund investments accumulate at 3.5% compound interest p.a ?
A. 16000
B. 16500
C. 16050
D. 16005

Subject: Maths, asked on 1/12/19

Solve this please sin inverse ( 2 sinx + 3cosx) / 13

Subject: Maths, asked on 20/5/19

Find the absolute maximum and absolute minimum values of the function f(x)=2cos2x-cos4x on [0,pi]

Subject: Maths, asked on 10/11/15

1) The first four moments of a distribution about the value 5,7,66,642 and 6754 respectively. Find the first four central moments and coefficients y1 and y2 of the distribution.
2) Calculate the first four central moments for the following frequency distribution.
x 1 2 3 4 5
f 4 9 12 4 1

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