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(2/3 + 7/15) - (-1/21 + - 3/7)= [(10 + 7)/15] - [(-1 - 9)/21] = (17/15) - (-10/21) = (17*7 + 50)/105= (117 + 50)/105= 167/105

page 2

11^2 is correct answer.

bahi answer galat hai

1/(x +1) + 2/(x + 5) = 1/22(x + 5 + 2x + 2) = (x + 1)(x + 5)2(3x + 7) = (x^2 + 6x + 5)6x + 14 = x^2 + 6x + 5x^2 - 9 = 0x^2 - (3)^2 = 0 (x - 3)(x + 3) = 0x = - 3, 3

4 should be i the answer

Put in X=-2hence40(-2)^2+11(-2)-6340*4-22-63=160-22-63=75 is the remainder

12.45×7=87.1549.70×12=596.40.83×11=9.13

plz accept as best

12.45x7=87.1549.70x12=596.40.83x11=9.13

87.15596.49.13 is the right answer

12.45 ×7= 87.1549.70×12= 596.4 0.83×11= 9.13 us the answer

a) 87.15b) 596.4c) 9.13

1:87.15 2:596.4 3:9.13

the points are marked in blue and the centre (0,0)no. of points inside is 9.

alternatively , you can put all these points un the equation x²+y² , and show them as < 9.

=325×600=195000 answer.

=325×600=195000 answer

195000 is a correct answer

325×699=195090 is the right answer

325×600325×6×1001950×100195000.

325×600195000 is the right answer

Given,x + 1/x = 5

Squaring both sides(x + 1/x)^2 = 25x^2 + 1/x^2 + 2*x*1/x = 25x^2 + 1/x^2 = 25 - 2x^2 + 1/x^2 = 23

this answer is worng and answer is -9

yes the answer is right....total chocolate= 12manju chocolate=33/12=1/4

x²+5x-3x-15X(X+5)-3(X+5)(X+5)(x-3) answer

it will be 9.5hope this helps u

From which book you have posted this questionplease tell us so that we can provide you faster answer

let sonus age be x4x-3=3x+74x-3x=7+3x=10 years

let sonu age be a A.T.G.S4×a-3=3×a+74a-3 = 3a+74a-3a=7+3 a=10Sonu's age=a=10yeara

let the original price be xx+20%×x=6000120x/100=6000x=6000×100/120x=5000To gain profit of 25%5000+25%×50005000+12506250So seeta had to sell the dining set at 6250 to gain profit of more 5%

derivative=

(-sinx-cos x)at x= 2π/3-(sin2π/3+cos 2π/3)-(cos30+sin30)-(√3/2+1/2)-(√3+1/2)please like the solution 👍 ✔️👍

From which book have you taken this question? Please tell us so that we can provide you faster answer.

2x^2 + 7/2x + 3/4 = 08x^2 + 14x + 3 = 08x^2 + 12x + 2x + 3 = 04x ( 2x + 3) + 1(2x + 3) = 0(4x + 1)(2x + 3) = 0x = - 1/4, - 3/2

a1=√2,a2=√8= 2√2a3=√18=3√2a4=√32=4√2_________________________________common difference a2-a1= 2√2-√2=√2so d=√2

I want these to be answer

(cos15*cos75)-(sin75*sin15)=(sin(90-15)*sin(90-75))-(sin75*sin15)=(sin75*sin15)-(sin75*sin15)=0

25% = 8001 % = 800/25= 32100%(cp) = 32 × 100= 3200 will be the answer

17/5+18/5=35/5=7 ans

In order to prove that the sum of angles of a triangle is 180, you must know the theorems of angles of a triangle.

We know that, alternate interior angles are of equal magnitude.

This'll help us get the answer. Let us assume a triangle ABC. Now we have to substitute the angles.

∠PAB + ∠BAC + ∠CAQ = 180°. where PQ line parallel to side BC touching vertex A.

∠PAB = ∠ABC & ∠CAQ = ∠ACB BECAUSE alternate interior angles are congruent..

Hence we get, ∠ABC + ∠BAC + ∠ACB = 180° [Proved]

Let AB be the tower with height h.Let AC and AD be the shadows when elevation of sun are 60 degrees and 45 degrees.As per given, CD=10mlet us assume CA=xIn triangle ACB,tan60°=opposite side /adjacent side√3=h/AC√3=h/xx=h/√3 ------ equation (1)

In traingleDAB,

tan45°=AB/AD=h/(AC+DC)1=h/(x+10)x+10=h-----equation(2)

By substituting the value of x in equation 2 we get:

h/√3+10=h

h-h/√3=10

h√3-h=10√3

h(√3-1)=10√3

h=10√3/√3-1

Rationalizing factor is√3+1

h=10√3(√3+1)/[(√3-1)x(√3+1)]

h=10√3(√3+1)/(3-1)

h=10√3(√3+1)/2

h=5√3(√3+1) m

h=5(3+√3)

=15+5*√3

=15+5*1.732

=15+8.660

=23.66 m

∴ Height of tower is 23.66m

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thank you

sinA = 12/13cosA = √(1- sin^2 A) = √(1- 144/169) = 5/13

(sinA - cos^2 A)/(2sinA - cosA)= (12/13 - 25/169)/(24/13 - 5/13)=(131/169)/(19/13)=131/247

thanks