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If ∑ sign denotes the summation over something, then underset{k=1}{overset{n}{mathop sum }},(2k-3) = a) 2400 b) 2450 c) 2500 d) 2550 ...

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What is a function of lymph? a) Transport of nutrient, wastes and gases b) Fighting disease causing germs c) Pumping blood d) Producing RBCs ...

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INTEGRATE: 1) (x3+3)/x6(x2+1). Upper limit=∞;Lower limit=0 2) xe-x/( 1-e-2x ). Upper limit=0;Lower limit=∞. 3) If f(x) be a function satisfying f'(x)=f(x) with f((0)=1 and g be the function satisfying f(x) + g(x)=x2,then ...

Phenol underset{ ext{(ii) }C{{O}_{2}}/{{140}^{o}}C}{mathop{xrightarrow{,, ext{(i) NaOH},,}}},Axrightarrow{{{ ext{H}}^{+}}/{{H}_{2}}O}Bxrightarrow{ ext{A}{{ ext{C}}_{ ext{2}}}O}C . In this reaction, the end product C is a) Sal ...

ext{Phenol}underset{ ext{Distillation}}{mathop{xrightarrow{,, ext{Zn},,}}},Aunderset{ ext{conc} ext{. }HN{{O}_{3}}}{mathop{xrightarrow{ ext{conc} ext{. }{{H}_{2}}S{{O}_{4}}}}},Bunderset{NaOH}{mathop{xrightarrow{Zn}}},C . In t ...

Integrate: 1) [(x-1) x4+2x3-x2+2x+1 ]/x2(x+1) 2) (x2-1)/(x3 2x4-2x2+1 ) ...

INTEGRATE: emsin-1x ...

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Integrate: 1) ( sinx )/( sinx + cosx ) 2) xln(x)/(x2-1)3/2. ...

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If sin α + sin β = a and cos α + cos β = b,then prove that sin(α + β) = (2ab/a2 + b2) ...

if α,β are two different values of θ lying between 0 and 2Πwhich satisfy the equation 6 cos θ + 8 sin θ = 9,then find the value of sin(α + β). ...

Two foods that have a lot of starch are a) Ice cream and pastry b) Pizza and paratha c) Brinjal and egg d) Chicken and mutton ...

Find the spin magnetic moment of Hg[Co(SCN)4] ...

what is the mechanism for the intramolecular wurtz reaction? ...

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What explains the fact that methanol reacts with HX faster than a primary alcohol? ...

Why is pyridine used in the reaction of R-OH + PCl3 to make R-Cl? ...

(tanB sinB)/(sec2B – 1) is the same as a) 1 b) sin B c) cos B d) None ...

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The magnetic field existing in a region is given by B=B0(1+x/l)k→.A square loop of edge l and carrying a current i,is placed with it's edges parallel to the x-y axes.Find the magnitude of the net magnetic force experienced ...

Which of these are not indicators ? a) Tumeric b) Purple cabbage c) Methyl Orange d) Crystal violet ...

Arrange HCL, CH3COOH and H3O+ in order of decreasing strength. ...

If angle θ is divided into two parts such that the tangent of one part is λ times the tangent of the other, and α is their difference,show that sinθ = (λ+1/λ-1)sinα ...

\hspace{-16}$If $\bf{\mathbb{S} = \sum_{r=4}^{1000000}\frac{1}{r^{\frac{1}{3}}}}.$ Then value of $\bf{\left[\mathbb{S}\right] = }$\\\\\\ where $\bf{[x] = }$ Greatest Integer function ...

Integrate this: \frac{x^{3}sin^{-1}x}{\sqrt{1-x^{2}}} ...

If f(x)=∫xa 1/f(x) dx (x>0) and ∫1a 1/f(x) dx= 2 ,then f(50) is: ...

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