यदि `(x-1)/(l)=(y-2)/(m)+(z+1)/(n)`, उस रेखा का समीकरण है जो `(1,2,-1)` तथा (-1,0,1) से होकर जाती है, तो (l,m,n) क्या होगा?

If (x-1)/(l)=(y-2)/(m)=(z+1)/(n) is the equation of the line through (1,2,-1) and (-1,0,1) then (l,m,n)

If (x-1)/l=(y-2)/m=(z+1)/n is the equation of the line through (1,2,-1) and (-1,0,1) , then (l,m,n)

Mention the condition under which the lines ( x - x _(1))/( l _(1)) = ( y - y _(1))/( m _(1)) = ( z - z _(1))/( n _(1)) and ( x - x _(2))/( l _(2)) = ( y-y _(2))/( m _(2)) = ( z - z _(2))/( n _(2)) will be perpendicular to each other.

If x and y are natural numbers such that x+ y = 2017, then what is the value of (-1)^x + (- 1)^y ? यदि x तथा y प्राकृतिक संख्याएँ इस प्रकार है कि x+y = 2017 है, तो (-1)^x + (- 1)^y का मान क्या है?

A=(x^8-1)//(x^4+1) and B=(y^4-1)//(y^2 +1) .If x= 2 and y = 9, then what is the value of A^2 + 2AB + AB^2 ? A=(x^8-1)//(x^4+1) तथा B=(y^4-1)//(y^2 +1) है। यदि x= 2 तथा y = 9 है, तो A^2 + 2AB + AB^2 का मान क्या है?

Given , a+1/a=2 , what is the value of (a^118+1/a^117) ? यदि a+1/a=2 है, तो (a^118+1/a^117) का मान क्या होगा ?

If a^3+1/a^3=52 , then the value of 2(a+1/a) is : यदि a^3+1/a^3=52 है, तो 2(a+1/a) का मान क्या होगा ?

Find the acute angle between the lines (x-1)/(l)=(y+1)/(m)=(1)/(n) and =(x+1)/(m)=(y-3)/(n)=(z-1)/(l) where l>m>n, and l,m,n are the roots of the cubic equation x^(3)+x^(2)-4x=4

The equation of the plane containing the line (x-x_1)/l=(y-y_1)/m=(z-z_1)/n is a(x-x_1)+b(y-y_1)+c(z-z_1)=0,"" where (A) a x_1+b y_1+c z_1=0 (B) a l+b m+c n=0 (C) a/l=b/m=c/n (D) l x_1+m y_1+n z_1=0