Search results

HERE IS THE COMPLEX QUESIONS EVEN WHICH MY TEACHER ALSO NOT UNDERSTAND SO PLEASE SOLVE THIS QUESTION QUES1) Find the =n of the ellipse reffered to its centre as origin and axes along the co-ordinate axes, whose minor axis is equalto the distance b/t the foci and whose latus rectum is 10. ques2)...

I don't know how to solve this question infact i know every formula but i confuse in these questions So, please solve this question 1)Ques: Find the =n of the parabola whose latus-rectum is 4 units, axis is the line 3x +4y-4=0 amd the tangent at the vertex is the line 4x -3y +7=0 also please...

1)I don,t know how to show that the =n y(square) -8y -x +19 = 0 represent a parabola. Find its vertex,focus and directrix. 2)Find the =n of the parabola with vertex at the origin and satisfying the condition: Focus(0,-3); Directrix y=3 Also find the length of latus rectum. MY WORK I have...

PLEASE HELP ME TO UNDERSTAND THIS QUESTION For a group photograph, 3 boys & 2 girls stand in a line in all possible ways. How many photos could be taken if each photo corresponds to each such arrangement ?

How to prove this; n!/r!(n-r)! +n!/(r-1)!(n-r+1)!=(n-r)!/r!(n-r+1)!

I don't know how to solve these question; 1)I have to show that 2power16 divides 32!. find the highest power of 2 that divides 32! 2)aiso prove that there are exactly 4! no.s b/w 1000 &10000 that contain the digits 1,3,5 &7

Sin(A+B)/Cos(A-B)=1-m/1+m. show that tan(pie/4-A).tan(pie/4-B)=m I DON'T KNOW HOW TO SOLVE THIS QUESTION. PLEASE SOLVE IT COMP.

Ques:Sin(A+B)/Cos(A-B)=1-m/1+m. Show that tan(pi/4-A).tan(pi-B)=m MY WORK: Apply commodento & dividedo Sin(A+B)+Cos(A-B)/Sin(A+B)-Cos(A-B)=1-m+1+m/1-m-1-m Sin(A+B)+Sin(pi/2-(A-B))/Sin(A+B)-Sin(pi/2-(A-B))=-1/m Sin(pi/4+B).Cos(-pi/4+A)/Cos(pi/4+B).Sin(-pi/4+A)=-1/m...

A line forms a triangle with coordinate axes. If the area of this triangle is 54sq.root3 squ. units & the perpendicular drawn from the origin to the line makes an angle of 60 with the x-axes. find the =n of the line. Sir, here I don't know how to find the =n of the line using area.

sir i don't know how to show that the =n lx+my=1(l &m is not=0) represents a straight line.

Ques- 1)find the =n of the st. line through the pt. A(3,4) & is inclined to the x-axis at an angle of 3pi/4. 2)find also the co-ordinates of two pt.s on it on opposite sides of A ata dis. underroot 2 from it MY WORK 1)use x-x'/cos theta=y-y'/sin theta pts are A(3,4) let x'=3 &y'=4 x-3/cos135=...

I don't know how to find the equations of the bisectors of the angles between the coordinate axes

WHAT ACUTE ANGLE DOES A LINE OF SLOPE -2/3 MAKE WITH A VERTICLE LINE. PLEASE HELP ME TO SOLVE THIS PROBLEM I DO'NT UNDERSTAND IT

if f(x)=mx+c and if f(0)=f '(0)=1, what is f(2) MY WORK:- given f(x)=mx+c . . . f ' (x)= d/dx(mx)+d/dx(c) =m Now from here i don't know how to find the value of f(2) i have tried but i failed to calculate the answer so please help me (answer is 3)

-3/4 x I don't know how to find its derivative using first principle. So please help me

1. If tanx=a/a+1 and tany=1/2a+1,show that one of the values of: x+y=pi/4 please give hint

1. Prove that: i) 1+tanAtanA/2=secA=tanAcotA/2-1 ii)tan(x--y)+tan(y-z)+tan(z-x)=tan(x-y)tan(y-z)tan(z-x) please tell me how to start these questions 2.if cotAcotB=2,show that (cos(A+B))/cos(A-B)=1/3 mY WORK (cos(A+B))/cos(A-B)=(cosAcosB-sinAsinB)/(cosAcosB+sinAsinB) PLEASE TELL ME WHAT TO DO NEXT

Tomorrow is my exam so please solve these questions immediately 1. If cos(A-B)+cos(B-C)+cos(C-A)=-3/2 Prove that cosA+cosB+cosC=sinA+sinB+sinC=0 2. If A+B=PI/4, PROVE THAT: (1+tanA) (1+tanB)=2tanA I know that the formula is tan(A+B)=(tanA+tanB)/1-tanAtanB but I do not know how to use...

PLEASE SOLVE THESE QUESTIONS; 1. if cos(A-B)+cos(B-C)+cos(C-A)=-3/2 Prove that; cosA+cosB+cosC=sinA+sinB+sinC=0 2. if A-B=pi/4,prove that; a) (1+tanA) (1-tanB)=2 b)(1+tanA) (1+tanB)=2tanA

I havea difficulties to solve these questions, so please first see my work and then help me to solve these questions. My work 1.PROVE THE FOLLOWING a) sin alpha +sin(alpha+2pi/3)+ sin(alpha+4pi/3)=0 sol. using "C,D" FORMULA, i.e,sinC+ sinD=2sin C/2+D/2 cosC/2-D/2 Actually i have a problem that...