If the sides of triangle in A.P. and `LC=90+LA` then prove that sides will be in ratio `sqrt7+1:sqrt7:sqrt7-1`

If the sides of triangle in A.P.and LC=90+LA then prove that sides will be in ratio sqrt(7)+1:sqrt(7):sqrt(7)-1

sqrt7 - 3/5 sqrt7 + 2sqrt7

1/(sqrt7+sqrt6-sqrt13)=

Prove that 2/sqrt7 is irrational.,

1/(sqrt7 - sqrt6)

1/(sqrt7 - sqrt6)

1/(sqrt7 - sqrt6)

If the sides of a triangle are in the ratio 1 : sqrt(3) : 2, then its angles are in the ratio