how to evaluate sin 30 without a calculator By using these two formulas we can calculate any sin and cos functions for any degrees by using methods sin 90 X sin 90 X cos 270 X like which will give minimum 98 accuracy Share
The above given trigonometric ratios of standard values as well as the trigonometric identities will help us to find an angle in trigonometry without a calculator If sin 150 is given to find out we can write or elaborate this as Steps Simplify sin 150 into sin 90 60 Further we can say sin 1 90 60 Learn how to evaluate trigonometric functions using trigonometric identities Trigonometric identities are equalities that involve trigonometric functions We will focus on the cofunction
how to evaluate sin 30 without a calculator
how to evaluate sin 30 without a calculator
[img-1]
[img_title-2]
[img-2]
[img_title-3]
[img-3]
This video shows you how to evaluate trigonometric functions without a calculator It s all about finding x y and r Sin 30 degrees is 1 2 and cos 30 degrees equals 3 2 How do you find sin 30 degrees without a calculator Use the unit circle sin 30 is the y co ordinate of the point that is 30 degrees above the x axis
I want to know how to calculate the value of sin not using table values or calculator I found this frac e ix 2 1 2ie ix but how to deal with i number if it s sqrt 1 To solve a trig equation without a calculator use exact values Learn the exact values for Sin Cos Tan for 0 30 45 60 90 degrees The trig triangles can help you work out the exact values Trig equations also require the use of the CAST diagram
More picture related to how to evaluate sin 30 without a calculator
[img_title-4]
[img-4]
[img_title-5]
[img-5]
[img_title-6]
[img-6]
Evaluating sin 30 cos 30 and tan 30 using a ruler and protractor About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Here s one way to do this without protractors and such with some algebra and basic trigonometric identities First notice that the sum and difference of the two angles are 91 and 15 and the values of trigonometric functions at both these angles are either known or very easy to evaluate
There are some quick ways to get it on your head You only need to know the values that belong in 30 45 and 60 degrees Since the other ones can be found by simple metric relations 180 x 180 x 360 x and they will have the same values since they are simetric to 30 45 and 60 The value of sin 30 degrees is equal to the ratio of the opposite side and hypotenuse of a right angled triangle Learn to derive the value of sin pi 6 geometrically at BYJU S
[img_title-7]
[img-7]
[img_title-8]
[img-8]
how to evaluate sin 30 without a calculator - To solve a trig equation without a calculator use exact values Learn the exact values for Sin Cos Tan for 0 30 45 60 90 degrees The trig triangles can help you work out the exact values Trig equations also require the use of the CAST diagram