Question

In A ABC, the value of cos theta is:​

Answer 1

Answer:

3 is the right ans

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Answer 2

The value of Cos theta would be 30 degree.

Trigonometry:

• In arithmetic, the arm of arithmetic engaging attention particular functions of angles and their use to forethoughts. There are six functions of an angle usually secondhand in arithmetic.
• Their names and abridgements are sine (sin), cosine (cos), touching (tan), cotangent (bunk), secant (brief time period), and cosecant (csc). These six concerning manipulation of numbers functions concerning a right trio are presented in the figure.
• For example, the trio holds an angle A, and the percentage of the side opposite to A and the side opposite to the right angle (the hypotenuse) is named the sine of A, or sin A; the different arithmetic functions are delimited likewise.
• These functions are features of the angle A liberated of the amount of the trio, and determined principles were classified for many angles before calculating created arithmetic tables outmoded. Trigonometric functions are secondhand in acquiring mysterious angles and distances from popular or calculated angles in lines figures.

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