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How can half angle identities help solve nonspecial angle measures?
Wiki User
∙ 11y ago
15 degrees is not a special angle, but it is half of 30, which is a special angle.
If you need sin 15 you can use the half angle formula with 30 degrees.
Wiki User
∙ 11y ago
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When given all three side lengths of a triangle but none of the angle measures you can solve for all angle measures using .?
With trigonometry by using the cosine rule
When given all three side lengths of a triangle but none of the angle measures you can solve for all angle measures using?
With trigonometry by using the cosine rule
What are the identities in trigonometry?
In trigonometry, identities are mathematical expressions that are true for all values of the variables involved. Some common trigonometric identities include the Pythagorean identities, the reciprocal identities, the quotient identities, and the double angle identities. These identities are used to simplify trigonometric expressions and solve trigonometric equations.
How do you solve identities on trigonometry?
Unlike equations (or inequalities), identities are always true. It is, therefore, not possible to solve them to obtain values of the variable(s).
Is this statement true or falseTo solve a triangle, you find all of its unknown side lengths and angle measures?
true
When given all 3 side lengths of a triangle but none of the angle measures you can solve for all angle measures using?
A protractor is used for measuring angles and the 3 angles in a triangle add up to 180 degrees.
How do you solve trigonometry identities?
by proving l.h.s=r.h.s
Is this statement true or falseYou can use the Law of Cosines to solve a triangle when you are given the lengths of the three sides and no angle measures?
true
How do you solve complicated trigonometry questions?
You make them less complicated by using trigonometric relationships and identities, and then solve the less complicated questions.
How do you solve for x in a angle in a double angle?
lol hahaha
If a supplement of an angle has a measure 78 less than the measure of the angle what are the measures of the angles?
Suppose the angle is x then its supplement is 180 - x so 180 - x = x - 78 that is, 258 = 2x or x = 258/2 = 129 <><><><><> Angle + Supplement = 180 Angle = Supplement + 78 Solve for the system of equations... Angle + Supplement = 180 Angle - Supplement = 78 ------------------------------------- 2 Angle = 258 Angle = 129 Supplement = 51
If two angles of a right triangle each measures 54 degrees what is the measure of the third angle?
To solve this, use the fact that the sum of all three angles, in a triangle, is 180 degrees.
