Question

plz do solve ques. no.12
class 10th maths
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Answer 1

hello mate,

here is your answer...

hope this helps

Answer 2

x/a = y/b

Apply componendo and dividendo

x + a)/ x-a = y + b)/ y-b

xy - xb + ay - ab= xy + xb - ay - ab

- 2xb +2ay = 0

ay = xb


Multiply both sides by x/y

ax = x^2 b/y

As ax + by = a^2 + b^2

x^2 b/y + by = a^2 + b^2

x^2 b + by^2 = y( a^2 + b^2)

y^2 b - y( a^2 + b^2) + x^2 b= 0

As ay = xb

x= ay/b

y^2 b - y( a^2 + b^2) + a^2 y^2/b = 0

y^2 b^2 - y b( a^2 + b^2) + a^2 y^2 = 0


y( y b^2 - b( a^2 + b^2) + A^2 y) = 0


y ( b^2 + a^2) = b( a^2 + b^2) or y= 0

y= b , 0

x= ay/b = ab/b = a , 0