Trigonometry

cos(t) - cos(t)*sin2(t) = cos(t)*[1 - sin2(t)]

But [1 - sin2(t)] = cos2(t)

So, the expression = cos(t)*cos2(t) = cos3(t)

Some scientific caculators can convert degrees minutes and seconds into decimal degrees and vice versa as for example 60045'18'' = 60.755

Most branches of mathematics - including trigonometry - deal with numbers. The square root of three is a number.

They are called trigonometricians.

On the New York State Algebra 2/Trigonometry regents examination, it is recommended to get at least 20 of the 27 part I multiple choice questions correct. When you reach the Part II, III, and IV there are 12 question remaining for a total of 39 questions on the examination. Part IV is the last section, containing 1 question which is arguably the longest and most difficult on the test. The grading and conversation chart changes per each test, but is recommended to get at least 7 of the 12 Part II,III, and IV correct (however it varies per question how many points each question is worth.) That is the basic outline of the exam, and each student is given 3 hours to complete the examination. Good luck if you are taking it.

180 - 127 = 53 degrees

Cut it out of a material whose weight per unit of area you know, weigh it, then divide the weight by the weight per unit of area.

Your question is insufficiently precise, but I'll try to answer anyway.

"Sine squared theta" usually means "the value of the sine of theta, quantity squared".

"Sine theta squared" usually means "the value of the sine of the quantity theta*theta".

The two are not at all the same.

In math a normal absolute value equations share a vertex.

The answer is 3rd quadrant because 980 degree -720 degree =260 degrees so the 3rd quadrant is 180 degrees to 270 degrees

One example of an astronomer's use of trigonometry is determining the distance to a star by triangulation.

The plicae circulares slow down the food passing along the intestines. Because of their shape there is an increase in the surface area between the food and the walls on the intestines which allows more efficient absorption of nutrients from the chyme - the stuff that comes from the stomach.

A right angle triangle has an hypotenuse which is its longest side, an adjacent side and an opposite side.

Volume = 6.86.86.8 = 314.432 cubic cm

28

The Law of Sines: a/sin A = b/sin B = c/sin C

24/sin 42˚ = c/sin (180˚ - 42˚ - 87˚) since there are 180˚ in a triangle.

24/sin 42˚ = c/sin 51˚

c = 24(sin 51˚)/sin 42˚ ≈ 28

Twenty divided by the cosine of 32 gives you 23.584 ft

As θ increases from 0 to π/2 (90o) sin θ increases until it reaches a maximum value of 1 when θ = π/2.

As θ increases from π/2 (90o) to 3π/2 (270o) sin θ decreases until it reaches a minimum value of -1 when θ = 3π/2.

As θ increases from 3π/2 (270o) to 3π (360o) sin θ increases until it reaches the value of 0 it had when θ = 0.

From this point, as θ increases (by the same amounts) sin θ repeats this same cyclic behaviour.

The cosecant of an angle is the reciprocal of the sine of that angle. So, to find the cosecant of 105 degrees, you first need to find the sine of 105 degrees. The sine of 105 degrees is approximately 0.9659. Therefore, the cosecant of 105 degrees is approximately 1.0353 (1 divided by 0.9659).

(sqrt 2) / 2

cos 71

1 - cos x as x approaches 0.

what is the cos of 0? It is 1.

So as x approaches 0 cos x approaches 1.

1 - 1 = 0

So as it gets very small the solutions gets smaller.

It is 1.04

They are such that their squares sum to 6.72 = 44.89

ie if one side is of length x with 0 < x < 6.7

the other side is of length √(44.89 - x2)