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I was going through HC Verma's "Concepts of Physics"... in problem he wrote cos 37degrees as 4/5... I want to know how to get it? and In exams if different angles are given... how should i solve it to get the value in Fraction ?

I was going through HC Verma's "Concepts of Physics"... in problem he wrote cos 37degrees as 4/5... I want to know how to get it?
and
In exams if different angles are given... how should i solve it to get the value in Fraction ?

Grade:

1 Answers

Chetan Mandayam Nayakar
312 Points
9 years ago

the three integers 3,4,5 form a Pythagorean triplet. cos37=4/5 is an APPROXIMATION based on this triplet.

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