Trigonometry

The dipthong "th".

well commercial products is really thing like doritos or phone commercials where the consumer presists that his/her product is best.

ocean waves/ sound waves

and it is also used in finding out the distances between planets and all.

any differential equation would be considered a calculus equations.

It can be, but it need not be.

Alot of problems were solved through the use of trig. To many to count in fact. The Sears tower would be an example I can think of. But good question.

354 = 58,149,737,003,040,059,690,390,169

Sinθ plus cosθ2 plus sinθ-cosθ2 equals 2 does not equal 2. It equals 2sinθ. The cosθ2 terms cancel out and you are left with sinθ + sinθ which is 2sinθ.

Well what I heard and learned is that you multiply the b x h (base times height) and then you divide it by 2.

Example: b x h

50 x 6=300

300 divided by 2= 150

So basicly the answer would be 150. By the way to way to show your work is like this:

A=b x h

A=(where you multiply and divide)

A=(your FINAL answer)

If you don't this process by words then I would highly recommend watch a video either on google or youtube.

V=(pi)(r)(r)(h) where r is the radius and h is the height.

V=(pi)(3.5)(3.5) (17)

The volume is about 654.24 cubic meters.

Length of arc = r*x where

r is the radius

and x is the angle

6 cm = 12 cm*x so x = 1/2 radians.

yes. 1. v=u+gt 2.s=ut + 1/2 gt2 here v is final velocity, u is initial velocity, g is acceleration due to gravity(9.8 m/s) and s is the distance.

The law of sines is used to find missing values in triangles. The formula is a/sinA=b/sinB=c/sinC. The idea behind the equation is that the larger an angle is the larger the side across from it will be and the smaller the angle the smaller the side across from it will be. Once you have set up your equation you can easily solve your equation with some simple algebra and a calculator.

A pentadecagon, although I prefer 15-gon.

possibly a skin tag

2 and 3

1

with your eyes

It is -pi.

Knowing just the length of the base you can not work out the area. You need the height and the base or the length of the hypotenuse in order to work out the area.

To verify sin2x - sin2y = sin x + y sin (x-y) [if I've read your equation correctly] is impossible (for all x and y).

A counter example can be easily found whereby the values of the two halves of the (supposed) equality are different.

Let x = π and y = π/2. Then:

Left hand side:

sin2x - sin2y = sin2π - sin2 π/2= 0 - 12

= -1

Right hand side:

sin x + y sin (x-y) = sin π + π/2 sin (π - π/2)

= 0 - π/2 sin (π/2)

= -π/2

Thus sin2x - sin2y = -1 ≠ -π/2 = sin x + y sin (x-y) when x = π and y = π/2, so the equality cannot be verified -

K

no, a triangle can have one long side or two as long as it has 3 sides.

Placing a question mark at the end of a phrase does not make it a sensible question. Try to use a whole sentence to describe what it is that you want answered.