Recently Active Mathematics Questions

if /z/ = max{ /z-1/ , /z+1/ } then, 1./z+conjugatez/=1\2 2.z+ conj. z =1 3./z+conj.z /=1 4.none ...

Q If z1 and z2 r uni modular complex numbers and it is given that z12+ z22=4 then find the value of (z1+z1)2 +(z2+z2)2 (A)9 (B)10 (C)12 (D)none of these ...

*Image* \int_{-1}^{1}{g'(x)dx} \: = ANS : 2g(1) Wer in the Questn is it Given g(x) is an ODD Functn ??? [7] and widout that HOW CAN g(1) - g(-1) = 2g(1) ??????????????? ...

Q1 let f(x)+f(1/x)=f(x)*f(1/x). if f(4)=17.find f(7). a) 48 b) 45 c) 50 d) 53 ...

no of ways in which a person can walk up a stairway which has 7 steps if he can take 1 or 2 steps up d stairs at a time is: A rhombus has sides of length 10cm. a circle with centre A passes through C & similarly a circle with ...

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stat1: if p is chosen at random from the interval [0,5] then the pblity of the eqn x2+px+(p+2)/4=0 having real roots is 2/5 cozzz stat 2:for real roots either p<= -1 or >=2 ans is d i can get da 2nd one so pl explain on ...

value of \lim_{n\rightarrow inf}\int_{0}^{1}{\frac{ny^{n-1}}{1+y}}dy single correct A) 1 B) 2 C) 1/2 D) none ...

tanθ.tanφ= (p-q)/p+q) ,show that (p-qcos2θ)(p-qcos2φ) is independent of φ and θ ...

let ABC be a triangle with P a point inside it such that <PAB=Ï€/18 <PBA=Ï€/9 <PCA=Ï€/6, <PAC=2Ï€/9 Q.<PBC=? (a)Ï€/9 (b)2Ï€/9 (c)Ï€/3 (d)none Q.Triangle ABC is___________ a)equilateral b)isosceles c)rt. angled ...

easy..... if 0<θ<π then 2+ 2+ 2+....... 2+2cosθ is equal to?????????? if there are n number of √ signs ...

i find it hard to these questions........... so plz help 1) (2cos40 -cos20)/sin20 2) tan10-tan50+tan70 ...

let the fn f satisfy f(x).f'(-x)=f(-x)f'(x) for all x n f(o)=3 q1the value f(x)f(-x) for all x is a]4 b]9 c]12 d]16 q2 ∫dx/(3+f(x))[limit -51 to 51] a)17 b)34 c)102 d)0 q3 no of roots of f(x)=0 in[-2,2] a1 b0 c2 d4 ...

\text{For x} >0,lim_{x\to 0}\left(\left(sinx\right)^{\frac{1}{x}}+\left(\frac{1}{x}\right)^{sinx}\right) \ is ...

someone plz help me recollect how to do this damn sum. I've totally forgotten how to do it 1.Find the minor axis of: 2x2-2xy+4y2-(3+√2)=0 ...

ƒ : R → R is a twice diffentiable fn. such that ƒ'(x) = ƒ(1-x) for all x \epsilon R Given ƒ(0) = 1 , Find ƒ(1) (A) e - 2 (B) ln 2 - 1 (C) sec 1 + tan 1 (D) cos 1 + sin 1 ...

How many distinct ordered pairs (x,y) exist where x and y are positive integers and satisfy xy = 72(x+y) ? ...

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sin x + cos x = 1/2 x ε 0, π find tan x ...

I feel iam weak in solving am-gm inequalities plz post some questions or d links in this website wer i could find question note:upto jee level only ...

Find the value of n such that an+1+bn+1/an+bn may be geometric mean between a and b . ...

*Image* SOLUTION ahead *Image* Can Sum1 pl. write the Statements for the proof that is why did they apply SUCH Conditions for each of the cases ??? [7] ...

If the first and the nth term of a G.p are a and b,respectively ,and if P is the priduct of n terms,prove that P2=(ab)n. ...

If a,b,c,d are in G.p then show that (a2+b2+c2) (b2+c2+d2)=(ab+bc+cd)2 ...

6. The A.M. between m and n and G. M. between a and b are each equal to ma+nb /m+n . Then m = (A) a b / a + b (B) b a / a + b (C) 2a b / a + b (D) 2b a / a + b ...

is this a DONKEY's toil - work Question Or has some more Elegant - Plausible Approach to it ?? [7] *Image* ...

Y = lim x2tan(1/x)/( 8x2 + 7x + 1 ) x--> - ∞ Z = lim x2tan(1/x)/( 8x2 + 7x + 1 ) x--> ∞ Find Y and Z ...

m1.m2 =-1 is the condition for perpendicular lines.. how is x=0 and y=0 perpendicular? ...

Ppl, plz put up all the summation series questions that u know..(along with answers) 1.I'm starting with: 1+2ω+3ω2..............nωn-1 ans. (n/ω-1) ...

There are exactly 2 distinct linear functions which map [-1,1] onto [0,2].Find them. ...