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What is the value of sin90?
It is: sin(90) = 1
People who contributed to trigonometry?
Some key contributors to the development of trigonometry include ancient civilizations such as the Babylonians and Egyptians, who used rudimentary trigonometric concepts for practical purposes. The Greek mathematician Hipparchus is often credited with formalizing the field of trigonometry, introducing the trigonometric functions and developing the earliest trigonometric tables. Later, Islamic mathematicians such as Al-Battani and Al-Khwarizmi made significant advancements in trigonometry, further expanding its applications in astronomy, geography, and mathematics. These early pioneers laid the foundation for the modern study and application of trigonometry in various fields.
What are the quadrant angles?
Quadrant angles are angles formed in the coordinate plane by the x-axis and y-axis. Each quadrant is a region bounded by the x-axis and y-axis, and is numbered counterclockwise starting from the positive x-axis. The angles in each quadrant have specific characteristics based on their trigonometric ratios, such as sine, cosine, and tangent values. In trigonometry, understanding quadrant angles is crucial for determining the sign of trigonometric functions and solving equations involving angles.
How are the graphs of sec x and csc x related?
They are co-functions meaning that 90 - sec x = csc x.
How do you graph 1 divided by 4 cos?
0.25
What trigonometric value is equal to cos 62?
The solution is found by applying the definition of complementary trig functions: Cos (&Theta) = sin (90°-&Theta) cos (62°) = sin (90°-62°) Therefore the solution is sin 28°.
How do you graph trigonometric functions with a degree in the parenthese?
Look on a unit circle graph and see what kind of pi it has. For example 90 degrees is pi/2
What are the functions of an acute angle of a right triangle?
Any function whose domain is between 0 and 90 (degrees) or between 0 and pi/2 (radians). For example, the positive square root, or 3 times the fourth power are possible functions. Then there are six basic trigonometric functions: sine, cosine, tangents, cosecant, secant and cotangent, and the hyperbolic functions: sinh, cosh, tanh etc. These, too, are not specific to acute angles of a right triangle but apply to any number.
How do you find trigonometric ratios of angles greater than 90 degrees?
subtract 90 from it and find the trig ratio of that and it will be equal to the trig ratio that is over 90 degrees
What number is the absolute value of -90?
Absolute value of -90 is 90.
What is the absolute value of 90?
Absolute value of 90 is 90.
What angles are used to relate the values returned by inverse trigonometric functions to angles larger than 90 degrees?
When using inverse trigonometric functions to relate values to angles larger than 90 degrees, we typically use reference angles. Reference angles are acute angles formed between the terminal side of the angle in question and the x-axis. By using reference angles, we can determine the appropriate quadrant and sign for the angle, allowing us to accurately relate the values returned by inverse trigonometric functions to angles greater than 90 degrees.
What is the value of x in a 90 degree triangle with a hypotenuse of 30 and a 45 degree angle x is the opposite of the 45 degree angle us a trigonometric function?
Use and rearrange the sine ratio: 30*sin(45) = 21.21320344 units
What value 10b when b 9?
If b = 9 then the value of 10b is 90
Why do trigonometric ratios do not depend on the size of the right triangle?
Because a right angle will always measure 90 degrees no matter what the dimensions of the triangle are.
If 36 is 90 of value what is the value?
40 x 90% = 36
How can 0 and 90 degrees be angles for trigonometric functions even though a right-angled triangle can never have them as 1 of its other angles?
Trigonometric functions take, as input, an angle between 0 and 360 degrees, or 0 and 2 pi radians. While it is useful to think of a right triangle on a unit circle, it is more correct to think in polar coordinates, where r=1 and theta equals the angle in question. The cosine and sign function still remain as the x and y values of the point on the unit circle. Even if you remain in rectangular coordinates, there is no problem, as you simply consider that, at 0, 90, 180, 270, and 360 degrees, the right triangle degrades to a straight line of length one.
