tan 7π/8

tan 7π/8

sin 450°, cos(-780°), and tan (37π/6)

the line x-2y+16=0 is tangent to a circle at (0,8). The line y=2x-1 is tangent to the same circle at (3,5). What is the center(ordered pair) of the circle?

The measure of the angle from a line l1, with slope -1/3 to a line l2 is 135°. Find the slope of the line l2?

In triangle XYZ, the measure of angle Y is 90°, YZ=12, and XZ=15. Triangle HJK is similar to triangle XYZ, where vertices X, Y, and Z, respectively, and each side of triangle HJK is 1/5 the length...

If cos t/sin t=1/3, then what's tan t?

Suppose you want to approximate the function f(x)=(x−2)2+4f(x)=(x−2)2+4 at x=3x=3. Given a line with slope mm through the point (a,b)(a,b), what is the point-slope form of the line?

A ladder leans against a wall with its foot 1.5 metres from the wall making for an angle of 45º36' with the ground. How long is the ladder?

Okay, so my but shows e^ integral tanx to be e^ln|secx|. as far as I know, the integral of tanx is -ln|COSx|. how do they do that?

The diagonals of a rhombus bisect each other and cross at right angles.

solve on the interval [0,2(pie)). The square root is just on the top 3 not the whole fraction.

Find number of points where tangents does not exist for the curve y =sgn(x2 -1 )

Angles α and β are between 0° and 360° with cos α = -0.9063 and tan β = -0.4877. Which of the following is a possible (approximate) value for α + β? A) 51° B) 129° C) 309° D) 361°...

If 0≤x≤90 and tan x=15/8, then cos x=?

If the tangent from point p to circle x2+y2=1 is perpendicular to the tangent from p to be circle x2+y2=3, then locus of p is ? A circle of radius _

In the middle of solving this implicit function/using implicit differentation to find its tangent line, this is what I have so far: Original function: y^3+x^3-2xy=8 (find tangent...

So I'm supposed to graph the given function at the tangent line at the given point, which I know how to do with an explicit/one part function but not an implicit/two part function. The function...

What is the equation for a circle which has its center at (1, 2) and is tangent to the line -3x+2y= 14. Solve using your algebra skills; DO NOT USE CONSTRUCTIONS!!!! The equation...

Write the equation for a circle which has its center at (1, 2) and is tangent to the line -3x+2y= 14 Solve algebraically. I know that the equation of a circle is r2=(x-h)2+(y-k)2...

Find x. Assume that segments that appear to be tangent are tangent.

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