Trigonometry - study the relationship involving the lengths and angles of the triangles.
arithmetic progression is the sequence of numbers.
The Brainliest Answer!
Trignometry is a sub branch of mathematics that involves the relation of angles,and side in a triangle

arithmatic progressinon is a series of numbers in which the next number can be obtained by either adding or subractinng or it can be said by adding a constant to the number

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