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c is correct good b answer

c) 5\12 is the correct answer of the following

287×287-2×269×287+269×269 = (287-269)(287-269) = 18×18 = 324

60*80/100 = 48 students

45*120/100 = 54 students

total percent = 48+54/80+120 * 100

= 102/200 * 100

= 51%

Let A = 287

B = 269

Given 287²+269²-2*287*269

We know that (a-b)² = a²+b²-2ab

= (287-269)²

= 18²

= 324

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1/4=2/86/10 is greater than 4/5

3/4 is less than 7/8

324

thanks u

lnp^2=a^2+(b^2-a^2)sin^2x

2lnp=a^2+(b^2-a^2)sin^2x

Now differentiate w.r.t.x

2/p(dp/dx)=(b^2-a^2)2sinx cosx=(b^2-a^2)sin2x

dp/dx=p/2(a^2-b^2)sin2x

Again defferentiate w.r.t x

d^2p/d^2x=1/2(dp/dx)(a^2-b^2)sin2x+p(a^2-b^2)cos2x

=p/4(a^2-b^2)^2sin^2(2x)+p(a^2-b^2)cos2x

Lets assume that√7 is rational number.ie√7=p/q.suppose p/q have common factor thenwe divide by the common factor to get√7 =a/b were a and b are co-prime number.that is a and b have no common factor.√7 =a/b co- prime number√7= a/ba=√7bsquaringa²=7b² .......1a² is divisible by 7a=7csubstituting values in 1(7c)²=7b²49c²=7b²7c²=b²b²=7c²b² is divisible by 7that is a and b have atleast one common factor 7. This is contradictory to the fact that a and b have no common factor.This is happen because of our wrong assumption.√7 is irrationalHence an irrational number multiplied by 2 is irrational hence 2√7And a number added or subtracted to rational is irrationalhence 3-2√7 is irrational

u

let the number be Xhence2x-7=452x=52X=26

thanks

x+y= 5and 2x+2y= 10as

Sol :Here the pair of linear equations arex+y = 5 2x+2y = 10(a1/ a2) = (b1/ b2)= (c1/ c2) =1/2the lines are coincident.

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Given:OAB is equilateral triangle. to prove:OCD is an isosceles triangle. construction:from point O, draw line from O to the points A,B,C,D. proof:line AC & BD are 2 diagonals equal. point O bisects all the diagonals. thus,AO=BO=CO=DO...CO is same as DO which proves that, OCD is isosceles.

kaise aya

or yaha b options me 9:6

malab 9:8

a1 = 6a2= 10d = 10-4 = 6

please post the complete question

should find the ratio ans=32:3

but how . What is the process iam asking

thanks

Ans :- O negative

In transfusions of packed redbloodcells, individuals withtypeO Rh D negativeblood are oftencalled universal donors.

एल्कीन श्रेणी का सामान्य सूत्र लिखिए

Divisibility by 6 is the nubmer is divisible by both 2 and 3

3456/2 = 1728

3456/3 = 1152

So, the number is divisible by 6

3456 is divisible by 6 because when the last number is even then the number will be divisible by 6 and answer is that when we divisible by 6 answer is 576

s=(3+4+5)/2 = 6area = root of [6×(6-3)×(6-4)×(6-5)]= root of (6×3×2×1)=root of(36)6 unit sq.

1. Area is the size of a two-dimensional surface.

2. The continuous line forming the boundary of a closed geometrical figure.

Given--Radius of lower end (R1)= 20cm Radius of upper end (R2)= 40 cm Height (H)= 30 cm

So the volume of container= 1/3 pi H ( R1² + R2² + R1R2) = 1/3 * 22/7 * 30 ( (20)² + (40)² + 40* 20) = 1/3 * 22/7 * 30( 400 + 1600 + 800) = 1/3* 22/7 * 30* 2800 = 88000 cm³ or 88 litres.

Amount of milk required = 880 litreNo. of containers needed will be= 880/88= 10 containers.

Cost of 1 litre milk= Rs. 30So, Cost of 880 litre= 880 * 30 = Rs. 26400

excellent thanks bro

hello bro plz answer my questions so that I learn more for my exam iam house wife iam not getting time to solve my problem i will great ful to u

Thanks

x^2+17x; x^2=17x; x=17

x2 + 17xx=17/2

this question is right answer

x^2+7x+10x

x^2+17x

x (x+17)

x=0 ;

x+17=0x=-17

x(X+5x)+2x(X+5)=0now (X+2)+(X+5)=0ans X+2=0 x =-2 or ans X+5=0 x=-5both answer are in - that why no answer is there

(x+5) (x+2 ) answer is ryt

the velocity in vertical direction is given by Vi = usin∅

so, using Newton's equation of motion

at Highest point , the velocity is 0

=> Vf²= Vi² - 2gH=> 0 = u²sin²∅ -2gH=> 2gH = u²sin²∅=> H = (u²sin²∅)/2g

no

wait...

tan^-1(1) + tan^-1(1/2) + ....... = π/2

=> π/4 + tan^-1(1/2) + ...... = π/2=> tan^-1(1/2) + ....... = π/2 -π/4 = π/4=> tan^-1(1/2) + tan^-1(x) = π/4=> (1/2+x)/(1-x/2) = tan(π/4)=> (1+2x)/(2-x) = 1=> (1+2x) = (2-x)=> 3x = 2-1=> x = 1/3

so, tan^-(1/3) is the answer.

Let us add 18 and 27 to get 45.

So tan(18+27) = 1 = tan 18 + tan 27/[1 - tan 18.tan 27] or

tan 18 + tan 27 = 1 - tan 18.tan 27, or

tan 18 + tan 27 + tan 18.tan 27 = 1.

Hence the answer is 1.

LCM of 18, 24 and 32 is288. Now, we have to get the multiple of288which also should be the samllest 4-digit number. Since288is divisible by 18, 24 and 32,1152is also divisible by all these numbers. Therefore,1152is the smallest four digit number divisible by 18, 24 and 32.

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