Evaluate sin(sin-1(sin60)) [60 degrees] and evaluate cos-1(cos(cos-10.5)) if the angle is in quadrant 1.

Evaluate sin(sin-1(sin60)) [60 degrees] and evaluate cos-1(cos(cos-10.5)) if the angle is in quadrant 1.

I'm having trouble solving the above question, as well as the one below tan20+tan10/1-tan20tan10=

In a 58° - 32° right triangle, the side adjacent to the 32° angle is 41.74 inches. If tan58° = 1.6003, find the length of the side opposite the 32° angle. Estimate your answer to 3 decimal places...

find value for sec theta when tan theta=-sqrt root 11 divided by 5, cos theta<0

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?

limx-->positive infinity tan ( x/x^2+1) limx--> negative infinity cot ( pix/4x+1) This is so confusing for me, i would lice a detailed step...

Find the tension in each cable necessary to keep the block from moving (either sideways or downward)

A 900-lb block is being suspended and held stationary by two steel cables as shown. The first cable (to the left of the block) makes a 70 degree angle with the horizontal, while the second cable...

I really need a lot of help in math, it's my worst subject. My best is English, but that's not important.

Three words. Terrible. At. Math. Could use some help understanding.

My professor said for this problem to use inverse trig functions, half angle, and double angle identities. Evaluate: tan(2sin-1(4/5)) Please list the answer...

Using the pythagorean identity, find the value of sin⊗ and tan⊗ if cos⊗= -1/2

Solve for ALL values of x in the real number system. If an EXACT solution does not exist, round your answers to the nearest hundredth. sin2x = sinx

Solve for x in the interval... 0<x<2π: 3sin2(2x+1)+2sin(2x+1)-1=0 My teacher says there should be 6 answers. I have a TI-84 calculator, so maybe...

I really need to get corrections done as quickly as possible. I need help. :(

One end of a 9.3 foot pole is 13.6 feet from an observer's eyes, and the other end is 17.4 feet from the observer's eyes. Through what angle does the observer see the pole?

Prove: 1-cos2x/1+cos2x=tan2x Please include step by step and next to each step, please include the identity used! :)

Prove: sinx/sinx+cosx)=tanx/1+tanx If you could, please list the steps and include the identities next to the steps.

Prove: SQUARE ROOT OF (3cosx+4sinx)2+(4cosx-3sinx)2 = 5 Please include step by step and the identities used next to each step! :)

Prove: (secx+tanx)^3(secx-tanx)^4=1-sinx/cosx Please show the steps and prove this by making both sides equivalent to each other. Also, please include which identities follow...

what's amplitude and period for domain and range and how do you find the turning point/point of inflection of Sine cos and tan graphs?