Answer #1:
The exact value is (square root of 6 + square root of 2) / 4
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Answer #2:
I don't think so.
The sine of almost all angles is an irrational number. 75 degrees is one of them.
That means its sine can never be exactly written with numbers.
The value given in Answer #1 is greater than ' 1 ', and we know that no sine can
have that value.
sin(405) = square root of 2 divided by 2 which is about 0.7071067812
SQRT(3)/4 - 1/4
1/squareroot2 ummm, yes, but be aware that square root 2 is an irrational number that has *no* exact value. So your question cannot be answered in the terms you asked it. You can use a calculator to get as much precision as you want, but never an *exact* answer.
sin(40o) = 0.6428
It is:- sin(40) = 0.6427876097
what is the value of sin 75 degree
The exact value of sin 22.5 is 0.382683432
The exact value is 0.40673664.
sin(405) = square root of 2 divided by 2 which is about 0.7071067812
sin 480° is equal to sin 60°, which is sqrt(3)/2 or approximately 0.866.
sin(60 degrees) = 0.8660 approx. The exact value is sqrt(3)/2.
sin(75) = sin(45 + 30) = sin(45)*cos(30) + cos(45)*sin(30) = [1/sqrt(2)]*[sqrt(3)/2] + [1/sqrt(2)]*[1/2] = 1/[2*sqrt(2)]*[sqrt(3) + 1] that is [sqrt(3) + 1] / [2*sqrt(2)]
SQRT(3)/4 - 1/4
1/squareroot2 ummm, yes, but be aware that square root 2 is an irrational number that has *no* exact value. So your question cannot be answered in the terms you asked it. You can use a calculator to get as much precision as you want, but never an *exact* answer.
The inexact value of tan 330 is -0.577350, to six significant places. The exact value cannot be represented as a single number because it is a non terminating decimal. To represent it exactly, consider that tan x is sin x over cos x, and that sin 330 is -0.5 and cos 330 is square root of 0.75. As a result, the exact value of tan 330 is -0.5 divided by square root of 0.75.
$75-$100, depending on condition, exact model, etc.
Many of the watches are worth around $75 each. The exact price will vary depending upon the exact watch and the its condition.