यदि समीकरण `2x+ky=1` तथा `3x-5y=7` समांतर है, तब k =

If x + y = 52 and x - y = 20, then find the value of x : y. यदि x + y = 52 तथा x - y = 20 है, तो x : y का मान कितना है?

If x + y = 7 and xy = 10, then the value of x^3+y^3 is: यदि x + y = 7 तथा xy = 10 है, तो x^3+y^3 का मान क्या होगा ?

If alpha and beta are the roots of the equation x^2 + x-1=0 , then what is the equation whose roots are alpha^5 and beta^5 ? यदि alpha तथा beta समीकरण x^2 + x-1=0 के मूल है, तो वह समीकरण क्या है जिसके मूल alpha^5 तथा beta^5 है?

यदि A= -(2x+3) , B= -3(x-2) तथा C=-2x+7 है। तब K का मान ज्ञात करो, यदि (A+B+C)=Kx

The point of intersection of the graphs of the equations 3x-5y=19 and 3y-7x+1=0 is P (alpha, beta) . What is the value of (3 alpha- beta) ? समीकरण 3x-5y=19 तथा 3y-7x+1=0 के आरेखों का प्रतिच्छेद बिंदु P (alpha, beta) है | (3 alpha- beta) का मान क्या है?

Find the value of k for which the following system of linear equations : 2x -ky = 1, 3x - 5y = 7 will have :- a unique solution .

Find the value of k for the given system of linear equations satisfying the condition below (i) 2x+ ky=1, 3x-5y=7 has a unlque solutions (ii) kx+3y=3,12x+ky =6 has no solutions (iii) (k-3) x +3y=k,kx +ky =12 has infinite number of solutions

k x + 3y = k - 3, 12 x + ky = k

Find the value of k for which the system of equations 2x + ky = 1 and 3x - 5y = 7 has a unique solution.

Find the value of k for which the system of equations 2x + ky = 1 and 3x - 5y = 7 has a unique solution.