Questions on Algebra: Trigonometry answered by real tutors!

Tutors Answer Your Questions about Trigonometry-basics (FREE)

Question 563830: what is the value of theta in the interval [0 degrees,360 degrees)that have given function value
cos=-1/2
Click here to see answer by richard1234(5390)

Question 563845: what are the exact values of the six trigonmetric functions for the following angle 300 degrees?
sin 300=
cos 300=
tan 300=
cot 300=
sec 300=
csc 300=
Click here to see answer by Theo(3464)

Question 563884: how to graph y=2/3 csc (x- pi/2)?
Click here to see answer by Theo(3464)

Question 563875: how do you do the work out
Click here to see answer by Alan3354(30993)

Question 562674: 2x^2-4x+10=0 solve and complete the square
Click here to see answer by lwsshak3(6522)

Question 564119: A circular arc has length 3 cm, and the radius of the circle is 2 cm. What is the measure of the angle subtended by the arc, in both radians and degrees?
Click here to see answer by stanbon(57387)

Question 564122: find exact value of csc -3pi/2
Thanks
Click here to see answer by stanbon(57387)

Question 564106: Write cos theta in terms of cot theta
Click here to see answer by Edwin McCravy(8909)

Question 564116: Find exact value of
cos 3pi/4
sin 7pi/12
Click here to see answer by lwsshak3(6522)

Question 564118: A ferris wheel with a radius 10 m makes 2 rotations in 4 minutes. What is the speed of the ferris wheel in meters per second?
Click here to see answer by lwsshak3(6522)

Question 564245: find sin (x),given that cos(x) = 1

Click here to see answer by stanbon(57387)

Question 564429: I need help on this trigonometry problem. If the cos of theta is 3/4, find the sec(theta - pie)?
Click here to see answer by ad_alta(240)

Question 564248: What is exact value of sec(5pi/6)cos(7pi/4)- cot(-pi/3)
Thank you.
Click here to see answer by ad_alta(240)

Question 563631: what is the exact value of the expression, without using a calculator.Simplify your answer completely, including any radicals. Use integers or fractions for any numbers in the expression. Do not use decimals.
cos(-43pi/6) - sec(-43pi/6)
Click here to see answer by ad_alta(240)

Question 562298: can you peove this?:cosbcscbtanb=1
Click here to see answer by ad_alta(240)

Question 564441: how do you find the sec of 540 degrees

Click here to see answer by stanbon(57387)

Question 562074: Hi, my name is michelle. im working on a midterm review that i have tomorrow at 12. im stuck on a problem. the question states, If and g(x)= x+1, evaluate (f of g)(x) and g (f (x) ) . What type of function is f(x) g(x)? Please help im very confused. so far i have
g(f(x))

am i doing this right?
thank you ahead of time for any time you take out of your day to help. i really appreciate it.
Click here to see answer by ad_alta(240)

Question 564644: x^2-3x-18
Click here to see answer by Alan3354(30993)

Question 564783: Find the amplitude, period and displacement of the function below and use this information to sketch its graph
y=cos(2x+2pi/3)
amp=1
period=pi
displacement=-2pi/6 Ithink
But I cant figure out how to do all plotting points to graph please help me!!
Click here to see answer by stanbon(57387)

Question 564830: How should i solve a trigonometric question?, because every time i see a trigonometric question, i can't face it and hence not able to do it.
Click here to see answer by Alan3354(30993)

Question 564903: int xe^{3x} dx
in other words, whats the anti-derivative of xe^(3x)
thanks!
Click here to see answer by Alan3354(30993)

Question 565039: sin(15.2 degrees), whats the answer?
Click here to see answer by stanbon(57387)

Question 565076: What is the tangent of 70degrees in radical form?

Click here to see answer by Alan3354(30993)

Question 564912: int 3x^(2) e^(-x) dx=
Click here to see answer by richard1234(5390)

Question 565338: Evaluate and write radicals in simplest form using
Click here to see answer by lwsshak3(6522)

Question 565832: write an expression for all the angles coterminal with 4pi/3. express answer in radian form. find the measures of two other angles, one positive and one negative, that are coterminal with the angle.
Click here to see answer by solver91311(16897)

Question 565890: Find two positive real numbers with a maximum product whose sum is 110.
Click here to see answer by stanbon(57387)

Question 565800: If 0 degrees less than or equal to x less than or equal to 360 degrees, solve the equation sin x= -square root of 3 over 2
Click here to see answer by ad_alta(240)

Question 566114: in a circle witha 10-ft diameter, and arc 20ft long subtends an angle of how many radians?how many degrees, to the nearest degree?
Click here to see answer by Alan3354(30993)

Question 566227: graph Y= 2 tan X/4
Click here to see answer by jim_thompson5910(28598)

Question 566233: graph two priods of Y= 1/2 cot x
Click here to see answer by jim_thompson5910(28598)

Question 566286: find the cosine and sine of 240 degree
Click here to see answer by ad_alta(240)

Question 566972: if tanθ = -3/4 90°<θ<180°, find cosθ
Click here to see answer by lwsshak3(6522)

Question 567026: an arc is 0.04 meters long and is intercepted by a central angle of circumfrence/8 radians. what is the diameter of the circle?
Click here to see answer by stanbon(57387)

Question 567036: sqrt(9-x^2) where x=3sin...i understand it is factoring and i know the answer is 3|cos| i just am having problems so i see the question to this point
sqrt(9-3sin^2)
Click here to see answer by Edwin McCravy(8909)

Question 567171:
Click here to see answer by nottohave(4)

Question 567603: an aeroplane takes off from the ground at an angle of 27 degrees and its average speed in the first 10 seconds is 200 km/h. what is the altitude of the plane at the end of this time?
Click here to see answer by nerdybill(6962)

Question 567602: from point A which is 30m from the base of a building B, the angle of elevation to the top of the building C is 56 degrees, and to the top of the flag pole CD is 60 degrees. find the length of the flag pole
Click here to see answer by stanbon(57387)

Question 567619: cotx-tan^2=0
Click here to see answer by Alan3354(30993)

Question 567705: Find the values of the six trigonometric functions of θ if the terminal side of Ɵ lies on the given line in the specified quadrant
y = x, quadrant 3
Click here to see answer by Edwin McCravy(8909)

Question 567914: The vertex angle of an isosceles triangle is 72°,and each of equal sides is 10 cm.Find the perimeter and the area of of the triangle.
Click here to see answer by mananth(12270)

Question 567944: To solve for all angles (theta) for which sin(theta) = -cos(theta), do I use the inverse function or the reciprocal?
Click here to see answer by Alan3354(30993)

Question 568470: Find the smallest positive number t such that
cos[tan(t)] = 0.6
Click here to see answer by AnlytcPhil(1277)

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