Trigonometry

A femtobyte is 1 Quadrillionth of a byte.

It is from the french word 'depot' meaning deposit. As in banking or warehousing for safe keeping. France.

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tan(2x) = 2tanx/(1 - tan2x)

So tan(2x) +1 = 2tanx/(1 - tan2x) + 1

= 2tanx/(1 - tan2x) + (1 - tan2x)/(1 - tan2x)

= (-tan2x + 2tanx + 1)/(1 - tan2x)

Cosine is 0.766

Let the sides be abc and their opposite angles be ABC and so:

Using the cosine rule angle A = 67.38 degrees

Using the cosine rule angle B = 67.38 degrees

Angle C: 180-67.38-67.38 = 45.24 degrees

4-5% only know about complex numbers...

(1-cosx)/sinx + sinx/(1- cosx)

= [(1 - cosx)*(1 - cosx) + sinx*sinx]/[sinx*(1-cosx)]

= [1 - 2cosx + cos2x + sin2x]/[sinx*(1-cosx)]

= [2 - 2cosx]/[sinx*(1-cosx)]

= [2*(1-cosx)]/[sinx*(1-cosx)]

= 2/sinx

= 2cosecx

It is f(x) = -x^2.

10.77 inches

aplus(:

sec2 = 1/cos(2) = -2.403 (radians)

x^2-19x+90

(x-9) (x-10)

tan theta = sqrt(2)/2 = 1/sqrt(2).

Shift = +2

Cotangent is a trigonometric function.

It is the reciprocal of the tangent.

Assuming you are referring to degrees; 0.81915

The abscissa.

trivia in trigonomtry

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)

tan 45° = 1

Sin 15 + cos 105 = -1.9045

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