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?

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?

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

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?

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?

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?

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 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 _

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

Shooter is on cliff on right side. Barrel height is 20. Target is on ground on left side, 500 to the left and 300 down. Target is .75 tall. What is angle of headshot (in radians)?

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

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...

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