Write the following statements in symbolic form and write their negatins :  (1) Mangoes
Channel: Doubtnut
Date: 2020-03-29

Write the following statements in symbolic form and write their negatins :  (1) Mangoes are delicious, but expensive. (2) A person is rich if and only if he is a software engineer.  (3) If diagonals of a parallelogram are perpendicular, then it is a rhombus. solution :