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In a certain school, 20% of students are below 8 years of age. The number of students above 8 years of age is two-third of the number of students of 8 years of age which is 48. What is the total number of students in the scho ...

*Image* Reagent for this conversion a) [Pt/{{H}_{2}}] b) Li/N{H_3} c) Si{a_2}BH d) MCPBA ...

Largest living invertebrate belongs to the phylum a) arthropoda b) annelida c) mollusca d) echinodermata ...

Which of the following figures has the largest area? I. A circle of radius *Image* II. An equilateral triangle whose sides each have length 4 III. A triangle whose sides have lengths 3, 4 and 5 a) I b) II c) III d) I and III ...

find the order and degree of the differential equation if its solution is (y+c)^2=xc ...

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If a cone and a sphere have equal radii and have equal volumes, then the ratio between the height of the cone and the diameter of the sphere is a) 1 : 1 b) 1 : 2 c) 2 : 1 d) 3 : 2 ...

The common factors of the terms 6ab2, 4b3, and 2a2b2 are 4, a, b 2, a, b2 3, a, b2 2, b, b Your Answer d Correct Answer b if there is no 'a' in the 2nd term then how can the answer be 2,a,b2? ...

1) Prove that ∫x3 2ax-x2 dx=7πa5/8. 2) Integrate: [ x4/(1-x4)] *cos-1(2x/(1+x2). Upper limit=1/ 3 ;Lower limit=-1/ 3 . 3) Integrate::: 2-x2/[(1+x) 1-x2 ].Upper limit=1;Lower limit=0. 4) Integrate:::: log(1+tanx) from 0 to ...

Let f(x) be a non constant twice differentiable function defined on (-∞,∞) such that f(x)=f(1-x) and f'(1/4)=0.Then a) f''(x) vanishes at least twice on [0,1] b) f'(1/2)=0 c) ∫(frm -1/2 to 1/2)f(x+1/2)sinxdx=0 d) ∫(fr ...

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A circular loop of radius R carries a current I.Another circular loop of radius r(<<R) carries a current i and is placed at the centre of the larger loop.The planes of the two circles are at right angle to each other.Fi ...

evaluate *Image* answer given is π2. ...

The average cost (Rs. y) of a monthly output of x tons of a irm producing a valuable metal is Rs.((x2/10)-3x+62.5).sHOW THAT THE AVERAGE VARIABLE COST CURVE IS A PARABOLA.fIND THE OUTPUT And The cost at the vertex of the para ...

2.the girder of a railway bridge is a parabola with its vertex at the highest point 15m above the ends.if the span is 120 m find the height of the bridge at 24m from the middle point. ...

What is disiamyl borane and DBN? ...

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Integrate:: 4x3[d2/dx2(1-x2)5]dx from 0 to 1.Here d2/dx2 means the double derivative of the function w.r.t.x. This sum is meant for students only ,not for experts. ...

{} is fractional func [] is GIF | |is mod *Image* 5. ∫(0 to x)ex-[x]d{x} 6. ∫(0 to 4){ x }dx 7.∫(-5 to 5)min({x+1},{x-1})dx ...

consider the integrals *Image* let I be the greatest among them. prove that I=I4 ...

whats the mechanism?? *Image* ...

Integrate: 1) (1+x-2/3)/(1+x) 2) cos2x /sinx 3)(x2 + n(n-1))/(xsinx+ncosx)2 ...

1) Let f:R to R be continuous function which satisfies f(x)=∫(0 to x)f(t)dt, then the value of f(ln5) is: a)0; b)2; c)4; d) 6. 2) Let I=∫(0 to 1) (sinx)/ x and J=∫(0 to 1) (cosx)/ x .Then which is true? a)I<2/3 and J ...

Describe the energy of a car driving up a hill. a) entirely kinetic b) entirely potential c) both kinetic and potential d) gravitational ...

What are the pores in Poriferans for? a) For taking in oxygen b) For taking in water c) For taking in food d) All of the above ...

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Try this... maybe it will work for you... but it works only once... not twice..... :) 1. Think of a two digit number 2. Add both the digits of this number 3. Subtract this sum from the original number. 4. Now if you are left ...

Just type > [one of the following numbers] from left to right (1 [1] - 50 [50]) [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] // 18 19 no smiley [21] [22] [23] [24] [25] [26] [2 ...

If x>0 then integrate (2x-[2x])2 from 0 to 100[x] where [.] means G.I.F. ...