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6!/r!(8-r)!=1 solve for r ...

A+B+C=pie ( A,B,C>0) AND ANGLE C IS OBTUSE THEN A) TAN A.TAN B >1 B) TAN A.TAN B <1 C) TAN A.TAN B =1 D) NONE OF THESE ...

1) The atomic mass of iodine is 127g/mol. A standing wave in iodine vapour at 400K has nodes that are 6.77 cm apart when the frequency is 1000Hz. At this temperature, is iodine vapour mono-atomic or diatomic? ...

1.Find: Π(n3-1)/(n3+1),from n=2 to n=∞. 2 If the equation x4 -4x3+ax2+bx+1=0 has 4 +ve roots then... value of (\a/+\b/)/(a+b)=? \ /=mod.. ...

1)Is the formula 'real depth/apparent depth =μ " valid if viewed from a position quite away from the normal? 2) Can there be a situation in which a light ray passes through a prism undeviated? I think it happens in grazing i ...

guys, those who wrote jee in apllication , who should attest pass certificate of 10th anyone please reply ...

What is the n-factor of H2O2 in the reaction : 2H2O2 → 2H2O + O2 Please explain ...

By now the AIEEE entrance examinees must have realised that only text books are not enough for their final preparation.You have to answer sample papers,attempt tests,view tutorials. Fortunately for you all these are available ...

Show that 101 is prime in easiest possible way......... ...

What's the value of- 1) 1 + 5/8 + 5.8/8.12 + 5.8.11/8.12.16 +..........................∞ 2) 1/2 + 1.3/2.4 ( 1/4 ) + 1.3.5/2.4.6 ( 1/4 )2 + ............∞ post the solution if possible ...

Can u tell me Colour depends on frequency or wavelength?? ...

Given, A triangle ABC in which DE is parallel to BC. DC and BE intersect at O such that area of triangle ADE = 3 sq. units and area of triangle DOE = 1 sq. unit. Find the area of triangle ABC.... Thinking over the problem sin ...

$Q:$\Rightarrow$ If the lines $ax^2+2hxy+by^2=0$ be two sides of a parallelogram and the line $lx+my+n=0$ be one of its diagonal , show that the eqn. of the other diagonal is $y(bl-hm)=x(am-hl)$ ...

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1.A question paper is split into two groups -A and B.The groups contain 4 questions, each question have an alternative .The group B contain 4 questions.A student has to answer at least one question from each group and he can ...

Show that 2003 cannot be written as the sum of two squares. ...

If a,b,c are odd integers, prove that ax2 + bx + c = 0 does not have a rational number solution. Please show the procedure...... ...

a, b, c and d are four numbers which are in A.P. and relation between a, b and d is a + 3b - d = 6 and between c and d is c - d = -4. Then find the sum till 60 terms of the A.P [Ans. 7200] ...

Today a teacher came in our class. He is a bit sycho... truly he is..... He gave us a linear equation and told to solve it in 10 ways... At first he gave us 2x + 4y = 8 and 4x + 8y = 19. So we said, sir this question will hav ...

Refer HC VERMA CAPACITORS 26) b) I need help in applying star - delta method to the upper 3 capacitors- namely 1,3,4 microF It is basically a Y and we need to transform to delta. I keep getting wrong answers. I got 3 capacita ...

I need help with HC VERMA PART 2 Q46. Initially, the capacitance is C/2 when S is closed, Why will the charge flow through the battery? Is it that the second capacitor gets short circuited? How do we find out whether two plat ...

If 0≤x≤100 , then total number of integer values taken by the function [x] + [2x] + [3x] + [4x] + [5x] is. ...

how to find the equation of the diameter of a circle when a circle is given whose equation is x2 + y2+ 12x +6y +10 =0?? ...

a circle 'c' intersecting the ellipse x2/16 + y2/9=1 such that common chord is of max. length , and intersecting the circle x2+y2-6x-10y+9=0 orthogonally ,then number of common tangents of circle 'c' and circle x2+y2-10x-11=0 ...

Q1 A solid sphere has a very small cavity at its center (volume of cavity→0).This cavity contains a source of electric field which varies as E(x) = k/x5 + k'/x3 (where 'x' = radial distance from the center & k,k' are positi ...

1)Something that isn't consumed by the reaction (so say A) is dissolved at the same time as something that is consumed by the reaction (B) in a solvent, so that they are in the same phase...what is this reaction an example of ...

A thread carrying a uniform charge lambda per unit length has the configuration shown. Assuming the curvature radius R to be considerably less than the length of the thread, find the magnitude of the electric field strength a ...

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*Image* i m getting sin 4x (2cosx -1) = 0 what after that???? ...

just for practice 1)Find an equation of the line through the point A (4,5,5) which meets the line (x-11)/3 = (y+8)/-1 = z-4 at right angles. ...