Linear equations12.Find the value of k for which the equations kx – y = 2, 6 x – 2 y = 3 have (a) a unique

Question

Linear equations

12.Find the value of k for which the equations kx – y = 2, 6 x – 2 y = 3

have (a) a unique solution (b) no solution.

11.
find the value of a & B for which the following equation have infinitely many solutions.

17. solve 1/x +1/2=2; 1/y – 1/x=6

18. if x+y=80, x-y =30, find x and y.
19. find graphically the coordinates of triangle formed by lines:
x+2y=3; 3x-2y=-7 and y+1=0

20.solve 1/7x + 1/6y=3; 1/2x – 1/3y= 5; x,y#0

polynomial

2. Check whether g(x) is a factor of p(x) by dividing first polynomial by second

polynomial

p(x)=x^2-5x+6, g(x)=2-2x+x^2

4.If the sum of the zeroes of the quadratic polynomial f(x)=kx^2!+2x+3k is equal to

the product of zeroes . Find the value of k.

9.If -2,1 and 3 are zeroes of polynomial x^3– 2x^2– 5x + 6 ,verify relationship

between the zeroes and the coefficients.

10.Obtain all the zeroes of 2x^3+x^2– 6x -3, if two of its zeroes are -3and 3.

11.Find the quadratic polynomial, the sum and product of whose zeroes are

(b)-3 ,-7

13.Find all the zeroes of 2 x^4+5x^3-11x^2+ 20 x + 12,if two of its zeroes are

2 and -2.

in progress 0
1 month 2021-08-16T04:26:48+00:00 2 Answers 0 views 0

find the principal value of tan^-1( -√3) + tan^-1 (1)The sources from which archaeologist studies the past is Primary and secondary sources.

Primary sources are the sources which are in written format in the form of journal books or diaries written during that time by the court person and travelers.

Secondary Sources are the sources which are the architectural remains of the ancient times such as monument, painting and inscriptionsprepare a web chart to show different sourcesYes, a body can have a constant speed and still be accelerating. For example you revolve a stone connected by a string in a circular motion. You will notice the stone rotates with a constant speed and yet have a centripetal acceleration which is directed towards the centre of the circle.find the principal value of tan^-1( -√3) + tan^-1 (1)what the he*l bro

Step-by-step explanation:

The sources from which archaeologist studies the past is Primary and secondary sources.

Primary sources are the sources which are in written format in the form of journal books or diaries written during that time by the court person and travelers.

Secondary Sources are the sources which are the architectural remains of the ancient times such as monument, painting and inscriptionsprepare a web chart to show different sources