we feel it really useless... but it is actually essential and is a part of life in all spheres.... but with 9th cyllabus I too agree that it is useless at times...

0Thank You

Prisha Gupta 5 years, 2 months ago

Coz some1 created it????????????

0Thank You

Kritika Singh 5 years, 2 months ago

Because of knowledge

1Thank You

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CBSE > Class 09 > Mathematics