0
NO!!!
Sine40 = Cosine50 = 0.64278...
Sin30 = Cos 60 = 0.5
Sin 0 = Cos 90 = 0
Sin 90 = Cos 0 = 1
From Latin the word 'Sine' means 'curve'. Cosine means 'Complimentary Sine' or Complimentary curve'.
The 'awkward' decimal numbers are based on a the radius of a circle, that radius being the hypotenuse of a right- triangle based at the circles origin/centre.
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Earn +20 ptsQ: Does sine 40 equal sin 20?
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Continue Learning about Algebra
What is the value of sin 40 degrees?
It is:- sin(40) = 0.6427876097
What is 20 divided by 0.5?
40
What is greater 50 percent of 40 or 40 percent of 50?
To determine which is greater between 50% of 40 and 40% of 50, we can calculate the actual values. 50% of 40 is 0.50 x 40 = 20. 40% of 50 is 0.40 x 50 = 20. Therefore, both values are equal at 20.
What is the value of SIN 40?
sin(40o) = 0.6428
If x varies jointly as y and the square as z and x equal 40 when y equal 20 and z equal 2 find x when y equal 30 and z equal 3?
135
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