Question

what is a mathematics ​

Answer 1

Answer:

mathematics is a art of sums which gobblles up our brain

Step-by-step explanation:

another my question is why we need sin and costheta

Answer 2

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Mathematics is the study of numbers, shapes and patterns. The word comes from the Greek word "μάθημα" (máthema), meaning "science, knowledge, or learning", and is sometimes shortened to maths (in England, Australia, Ireland, and New Zealand) or math (in the United States and Canada). ... Numbers: how things can be counted.