Trigonometry

1/60th of a minute.

Almost by definition, tan θ = sin θ / cos θ

You can convert this to sine θ in several ways, for example:

sin θ / cos θ = sin θ / cos (pi/2 - θ)

Or here is another way, using the Pythagorean identity:

sin θ / cos θ = sin θ / root(1 - sin2θ)

Sin 15 + cos 105 = -1.9045

tan 45° = 1

From the given information the value of x works out as 16

I don't know about balaclave, but the name "balaclava" comes from the town of Balaklava in Crimea. During the Crimean War, knitted balaclavas were sent over to the British troops to help protect them from the bitter cold weather.

sin(148) = -0.33833339432428

No, because there is no such thing as a hectagon. Unfortunately there are a few similar words and so it is not possible to guess what you meant.

Perhaps in figuring angles and bevels when installing mouldings or when figuring lengths of rafters in stick building. I personally never got beyond basic algebra in high school(and barely made passing grades) yet I have built hundreds of houses and installed a lot of mouldings at a lot of crazy angles and squared up a lot of foundations just using basic math and a lot of common sense. It might have been easier had I known trig but it sure did'nt seem necessary.

Check out these articles for a simple free tool and tutorial that will make trig simple enough for ANYBODY to understand!

http://www.ehow.com/how_5520340_memorize-trig-functions-losing-mind.html

http://www.ehow.com/how_5227490_pass-mind-part-unknown-sides.html

http://www.ehow.com/how_5428511_pass-part-ii-unknown-angles.html

Trigonometry is basically formula's to help you find out unknown sides and angles of a triangle.

Surveying is measuring land. But as not all land is equal so these formula's are used to help.

The relation between the arc of length and the central angle is that the arc of length divided by one of the sides is the central angle in radians. If the arc is a full circle, then the central angle is 2pi radians or 360 degrees.

Yes.

The word is first known in English from the 15th century from Scots. Although the etymology is uncertain, the most likely origin is thought to be from the Middle Dutch colf ("'club'").

pentrant?

You cannot since the transformation is not a horizontal shift.

cos(x^2)=cos(x times x)

Yes they are.

60 degrees

300 000*0,3 = 90 000 dollars

= tan (48.323 deg) = 1.1232

It is a straight line that goes up. In 2-dimensional geometry it usually goes up the the page whereas in 3-d it is the line that goes upwards - towards the sky!

Correction: the problem is Tan(30)= x/ 7.5 root 2