Question

i ask something to cbse class tenth​

Answer 1

By P.G.T

a² = p² + c²/4

a² = 4p² + c² / 4 -----(i)

By P.G.T

b² = p² + c²/4

b² = 4p² + c² / 4

Adding reciprocal of (i) and (ii)

1/a² + 1/b² = 1/( 4p² + c²)/4 + 1/(4p² + c²)/4

1/a² + 1/b² = 4 / 4p² + c² + 4/4p² + c²

1/a² + 1/b² = 8 / 4p² + c²