1. Prove that a diagonal of a llgm divides it in to two content triangle
   

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ABCD is a cyclic quadrilateral. AB is produced to E. It is given that angle DAC=20degree and angle ACD=65degree. Find angle ODC and angle CBE

ABCD is a cyclic quadrilateral. AB is produced to E. It is given that angle DAC=20degree and angle ACD=65degree. Find angle ODC and angle CBE

If 2 is added to the numerator and 3 is subtracted from the denominator then the fraction
becomes half. Express the above statement in the form ax + by + c = 0. Find a, b and c.