31 Answered Questions for the topic Sin
Which expressions are equivalent to −tan θ?
1) Which expressions are equivalent to −tan θ?There may be more than one correct answer. Select all that apply.a) 1/cot(−θ)b) 1/cotθc) tan θd) −1/cotθe) −1/cot(−θ)f) tan(−θ)2) What is the correct... more
If Tan^2(t)-Sin^2(t)=Sin^a(t)/Cos^b(t), then the positive power a= ALSO the positive power b=
So, I know the first two stepssin^2(t)/cos^2(t) -sin^2(t)sin^2(t)-sin^2(t)cos^2(t)/(cos^2(t)I have no idea what to do after this? I looked and it said to factor but I have no idea why you factor... more
What is the difference between إِثْم and ذَنب and سَيِّئَة which refer to sin?
There are a number of Arabic words in Quran that refer to sin like: إِثْم and ذَنب and سَيِّئَة. *I am looking for the difference between them and their usage.*
Find all angles θ between 0° and 180° satisfying the given equation sin(θ) = 1/8
This is a trig question my math teacher gave and i am confused. I thought the answers were 4.2 and 172.8
Establish the identity sin ( π/2 + Ø) = cos Ø
Which of the following four statements establishes the identity? A.) sin ( π/2 + Ø) = sin π/2 sin Ø+cos π/2 cos Ø=(0)sinØ+(1)cosØ=cosØ B.) sin ( π/2 + Ø) = sin π/2 sin Ø-cos π/2... more
Sin and Cos functions
Without a calculator, find the exact value of: a) sin(120) b) cos(-3Π/4)
Find all solutions of the equation in the interval [0,2pi). (sinx)^2=2-2cosx Write your answer in radians in terms of pi
Find cot(x) and sin(x), if cos(x)=-(1/5) and tan(x)<0
I really need a lot of help in math, it's my worst subject. My best is English, but that's not important.
Graphing Trig. Functions & Inverses
Evaluate In degrees: 1. Sin^-1 (-2pi) 2. arctan (- square root 3/3) 3. sin (cos^-1(- square root 3/2) Evaluate in Radians 1. Arctan (-1) 2. cos^-1 (- 1/2)
Solving For X In The Interval
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 there's a way to plug this in to find... more
Solve For All Values of X
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
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... more
Through what angle does the observer see the pole?
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?
Convert from Polar to Rectangular Form
Convert the following from Polar to Rectangular Form: r=3sinΘ(Theta)-4cosΘ(Theta)
Evalulate Basic Problems
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 step by step and next to... more
Prove Basic Problems (Dealing with Cos & Tan)
Prove: 1-cos2x/1+cos2x=tan2x Please include step by step and next to each step, please include the identity used! :)
Prove Basic Problems (Dealing with Sin, Cos, Tan)
Prove: SQUARE ROOT OF (3cosx+4sinx)2+(4cosx-3sinx)2 = 5 Please include step by step and the identities used next to each step! :)
Proving Basic Problems (Dealing with Sin, Cos, Tan)
Prove: sinx/sinx+cosx)=tanx/1+tanx If you could, please list the steps and include the identities next to the steps.
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 with each step! :)
Using the pythagorean identity, find the value of sin? and tan? if cos?= -1/2
Using the pythagorean identity, find the value of sin⊗ and tan⊗ if cos⊗= -1/2
sin^2x=5 has how many solutions on the interval 0 less than or equal to x less than or equal to 2pi?
A.0 B.2 C.1 D.Infinity I need a step by step on how to do this.