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General Solution of Trigonometric Equation

In 'history o...

Question

In 'history of mathematics', how many trigonometric functions were first defined by Indians?

A

2

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B

3

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C

4

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D

5

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Solution

The correct option is B $3$
In 'history of mathematics', $3$ trigonometric functions were defined by Indians: sine, cosine and arctangent.

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General Solution of Trigonometric Equation

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