How to calculate the sine of an angle without using a calculator? Sine Ratio: The sine of an angle is given by the quotient between the opposite side and the hypotenuse of a right triangle. This quotient, as well as other types of quotients, are known as trigonometric ratios. These tri...
Sine, cosine and tangent, often shortened to sin, cos, and tan in mathematical operations and on calculator keys, are the most basic trigonometric functions. All three are based on the properties of a triangle with a 90-degree angle, also known as a right triangle. By knowing the sides of...
Q.1. How do you find cos 120 without a calculator?Ans. You can use both the following formulasi) cos (180° –θ) = – cosθ orii) cos (90° + θ) = – sinθQ.2. What is cos 120 in radians?Ans. In radian, the value of cos 120 is 2π/3 i.e equal to -1/2....
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How to find {eq}x = tanx? {/eq} Trigonometry Function:The trigonometry function tangent is used on an angle. In a right-angled triangle, the tangent of an angle is {eq}\tan(\theta)=\frac{p}{b} {/eq}, where {eq}p {/eq} is the length of the side opposite to the angle {eq...
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The angle you point at determines: sine(x) = sin(x) = height of the screen, hanging like a sign cosine(x) = cos(x) = distance to the screen along the ground [“cos” ~ how “close”] the hypotenuse, the distance to the top of the screen, is always the same ...
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