Trigonometry

The answer to the math question Cos 5t cos 3t -square root 3 2 - sin 5t cos 3t equals 0. In order to find this answer you will have to find out what each letter is.

sin 480° is equal to sin 60°, which is sqrt(3)/2 or approximately 0.866.

Surface area of sphere is 4 x pi x r x r

Volume of sphere is (4/3) x pi x r x r x r

Hence ((4/3) x pi x r x r x r) / (4 x pi x r x r) = 1/2

((4/3) x r) / (4) = 1/2

(1/3) x r = 1/2

r = 1 and 1/2

cube

Between 15 and 20 degrees...

4/.4 + 4/4 = 10 + 1 = 11.

Sin is sin-1(opposite/hypotonose)

NOTE: only works for isocoles (at least 2 sides of eqaul length and angle apart)

you need to use Pythagoras therom in the below manner:

(1/2 the base 1st to make 2 triangles)

the longest side (c) squared divided by 1/2 the base (b) squared = answer (a) squared. square root the answer to find the height

or in simpler terms

C^2/ 1/2 the base^2=A^2

C^2/B^2=A^2

which would be directly opposite to the formula a^2 * B^2 = C^2

800

1

cos(t) = 0.92568

therefore t = cos-1(0.92568) = 0.3880.

If the answer comes out as 22.23, the calculator is set to degrees. Simply multiply that result by pi/180 to convert to radians (or reset the calculator to work in radians). Excel, for example, works in radians.

From that primary value you get

t = 0.3880 + 2*k*pi

and

t = 2*k*pi - 0.3880

for all integer values of k.

The result is a direct consequence of the sine rule.

- 0.5 sqrt(3) = - 0.866 (rounded)

sine[theta]=opposite/hypotenuse=square root of (1-[cos[theta]]^2)

tan = sin/cos

Now cos2 = 1 - sin2 so cos = +/- sqrt(1 - sin2)

In the second quadrant, cos is negative, so cos = - sqrt(1 - sin2)

So that tan = sin/[-sqrt(1 - sin2)]

or -sin/sqrt(1 - sin2)

For navigational purposes

cot(45 deg) = 1.

degree x 1rev/360degree

opposite/hypotenuse

How do you solve ln|tan(x)|=ln|sin(x)|-ln|cos(x)|? Well you start by........

It means that you have so many choices to go by.

∫ cos(x) dx

= -sin(x) + C

Yes, an Octahedron has 8 faces. But how many edges? Let's see, 4 on top, 4 on bottom and 4 connectors. I think that would be a total of 12.

(x^2 + 9x +14) / (x+5)

Factor (x^2 + 9x +14)

[(x+7)(x+2)]/[(x+5)], x cannot equal -5

alien planet