[13.,(1)/(16x)+(1)/(15y)=(9)/(20)],[(1)/(20x)-(1)/(27y),=(4)/(45)]

Simplify :(-3)/(10)+(7)/(15)+(3)/(-20)+(-9)/(10)+(13)/(15)+(13)/(-20)

Simplify: (-3)/(10)+(7)/(15)+(3)/(-20)+(-9)/(10)+(13)/(15)+(13)/(-20)

(16(2)/(5)-12(1)/(15))-:3(4)/(81)=?( a) 1(9)/(19) (b) 1(9)/(13)(c)2(8)/(13) (d) 3(2)/(19) (e) None of these

The value of (1-(1)/(3^(2)))(1-(1)/(4^(2)))(1-(1)/(5^(2)))ddot M(1-(1)/(11^(2)))(1-(1)/(12^(2))) is (11)/(20) (b) (13)/(15) (c) (13)/(18) (d) (15)/(16) (e) None of these

Consider the lines (x-5)/(3)=(y-7)/(-16)=(z-3)/(7) and (x-9)/(3)=(y-13)/(8)=(z-15)/(-5) , then-

Equation of the hyperbola with foci (0,pm5) and e=(5)/(3) is (1) (x^(2))/(9)-(y^(2))/(16)=1 (2) (x^(2))/(16)-(y^(2))/(9)=-1 (3) (x^(2))/(16)-(y^(2))/(9)=1 (4) (x^(2))/(12)-(y^(2))/(13)=1

Simplify: (-3)/(10)+7/(15)+3/(-20)+(-9)/(10)+(13)/(15)+(13)/(-20)

If [(2,-1,3),(1,3,-1),(3,2,1)],[(x),(y),(z)]=[(9),(4),(10)] ,then [(x),(y),(z)] is equal to