Questions on Algebra: Trigonometry answered by real tutors!

Tutors Answer Your Questions about Trigonometry-basics (FREE)

Question 34079: ctn 30 degrees, writing the exact value.
Click here to see answer by kietra(57)

Question 34256: find the eact value is 0 tan(x+y) if cscx=5/3 and cosy=5/13
I am aware that I have to use the sum idenity for the tangent function but I have no clue how to change csc and cos into a tangent idenity if that is even what I am supposed to do. I have tried a few times but I get different wrong answers each time.
Click here to see answer by venugopalramana(3286)

Question 34344: find the exact value using the sum, difference, half, or double angle formulas and the exact value char in cos 105 degrees.
Click here to see answer by longjonsilver(2297)

Question 34343: prove this identity: tan to the second power theta + sec to the second power theta = 2 sec to the second power theta - 1
Click here to see answer by longjonsilver(2297)

Question 34342: Find the area of a segment of a circle if the diameter is 12 inches and the central angle is pi/4 radians?
Click here to see answer by Earlsdon(6291)

Question 34345: express in terms of theta: csc (90 degrees + theta) sin (180 degrees + theta) - tan (270 degrees - theta).
Click here to see answer by venugopalramana(3286)

Question 34341: Find the projection on the x-axis if AB = 10 and theta = 30 degrees.
Click here to see answer by venugopalramana(3286)

Question 34553: Dear Math Tutor,
I need help with this problem. I also need this problem by April 23, 2006.
(a-b)raised to the 2 power -3(a-b)-18=0, find the value of a-b-14 if a-b+3=0

Click here to see answer by stanbon(57424)

Question 34730: How do you graph y = 3 sin 2theta?
Click here to see answer by ichudov(499)

Question 34733: How do you solve this triangle: a=33 b=52 c=21
Click here to see answer by Prithwis(166)

Question 34732: How do you solve this triangle: a=32.0 b=40.0 c=71 degrees 45'
Click here to see answer by Prithwis(166)

Question 34739: what is the exact value of sin 22.5 degrees using the sum, difference, half, or double angle formulas and the exact value chart in the solution.
Click here to see answer by venugopalramana(3286)

Question 35026: How can you fine the distance between two points with only given angles?
Click here to see answer by stanbon(57424)

Question 35026: How can you fine the distance between two points with only given angles?
Click here to see answer by Prithwis(166)

Question 35367: how do you solve:
is triangle DEF, d=5 e=6 f=3 then COS E=????
i have the right set up i believe but i cant get the right answer helpp!!!
Click here to see answer by venugopalramana(3286)

Question 35340: In a right triangle one side is 8 ft and the other side is 6 ft. What are the measures of angle A and B if C is 90 degrees? What is the hypotenuse?
Click here to see answer by venugopalramana(3286)

Question 33858: cos theta = 5/12 and tan theta is negative, find the exact valcue for sin theta.
Click here to see answer by venugopalramana(3286)

Question 33860: cos theta = 5/12 and tan theta is negative, find the exact value for ctn theta.
Click here to see answer by venugopalramana(3286)

Question 34006: using sum, difference, half, or double angle formulas and the exact value chart in the solution, find the exact value of cos 105 degrees.
Click here to see answer by venugopalramana(3286)

Question 34007: solve this triangle: a=32.0 b=40.0 C=71 degrees 45'
Click here to see answer by venugopalramana(3286)

Question 34009: Find the projection on the x-axis if AB=10 and theta=30 degrees.
Click here to see answer by venugopalramana(3286)

Question 34011: Express in terms of theta: csc (90 degrees + theta) sin (180 degrees + theta)
-tan (270 degrees - theta). Leave only a factor of one (1) in the denominator, which will drop out (in other words, do not leave the answer as a fraction).
Click here to see answer by venugopalramana(3286)

Question 35486: find the exact values for the trig functions, with the radian measure: pie/4
Click here to see answer by venugopalramana(3286)

Question 35484: find the exact values for the trig functions, with the radian measure: pie/4
Click here to see answer by venugopalramana(3286)

Question 35485: Find the exact values for the trig functions, with the radian measure: 15p/4

Click here to see answer by venugopalramana(3286)

Question 35485: Find the exact values for the trig functions, with the radian measure: 15p/4

Click here to see answer by AnlytcPhil(1278)

Question 35489: choose the correct x + yi form for : 2(cos 120 degrees + i sin 120 degrees)
Click here to see answer by venugopalramana(3286)

Question 35488: convert the given coordinates to the equivalent polar form for wz:
w = 4(cos 0 degrees + i sin 0 degrees), z = 3(cos 130 degrees + i sin 130 degrees)
Click here to see answer by venugopalramana(3286)

Question 35491: given x + iy form, write in polar form: 5-i
Click here to see answer by AnlytcPhil(1278)

Question 35523: Prove the following is an Identity:
Tan (X) - Cot (X) over Tan (X) + Cot (X) = 2sin^2 (X) - 1
Click here to see answer by narayaba(40)

Question 34077: Find the area of a segment of a circle if the diameter is 12 inches and the central angle is pi/4 radians?
Click here to see answer by venugopalramana(3286)

Question 35706: a radio tower casts a shadow 120 meters long when the angle of elevation of the sun is 41 (degrees. how tall is the tower?
Click here to see answer by rapaljer(4667)

Question 35764: Convert each angle in degrees to radians. Express answers in decimal form (2 places):
-125 degree
340 degree
Click here to see answer by venugopalramana(3286)

Question 36014: Hi. I need help with the following problem. "Find the solutions of the equation in interval [0,2pi)." the problem is secx+tanx=1. The only thing I did was subtract the one, but now i'm unsure what to do. Please help!
Click here to see answer by venugopalramana(3286)

Question 36126: find the exact value of tan 30 degrees
Click here to see answer by stanbon(57424)

Question 36126: find the exact value of tan 30 degrees
Click here to see answer by rapaljer(4667)

Question 36154: Two questions!
1. write the equation for the following :tan: amp=3, period=90, vert. stretch=4D

2.evaluate:
Click here to see answer by stanbon(57424)

Question 36191: given the sequence qn=(4n-3)/(2-5n), find q10 and q50.then find lim qn
Click here to see answer by venugopalramana(3286)

Question 36195: convert 210 degrees clockwise to radians
Click here to see answer by queenofit(120)

Question 36849: the square of a number decreased by the square of one half the number is 108. find the number.
Click here to see answer by checkley71(8403)

Question 36848: the square of anumber exceeds 11 times the number by 312. find the number.
Click here to see answer by checkley71(8403)

Question 36848: the square of anumber exceeds 11 times the number by 312. find the number.
Click here to see answer by vidhyak(94)

Question 36845: the difference of the squares of two consecutive odd integers is 48. find the integers
Click here to see answer by checkley71(8403)

Question 36842: the sum of the squares of two consecutive even numbers is 244.find the integers.
Click here to see answer by vidhyak(94)

Question 36841: if the product of two consecutive integers is decreased by 20 times the greater integer the result is 442. find the integers.
Click here to see answer by vidhyak(94)

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