622 Answered Questions for the topic Trig

01/05/14

Simplify (sin42degrees)cos38degrees-(cos42degrees)sin38degrees
This is for my trig class, thanks for the help!
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Expert Answers •1

01/05/14

Use the sum or difference formulas to determine: A. sin105 degrees and B. tan15 degrees
This is for my trig class, thanks for the help!
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Expert Answers •2

01/03/14

Use the half angle formulas to determine.
A. sin22.5 degrees and  B. tanpi/12 degrees
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01/03/14

Given sintheta=4/5, theta lies in Quadrant II, find cos (theta/2)
This is for my trig class. Thanks for the help!
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01/03/14

Use the power reducing identities to write sin^2xcos^2x in terms of the first power of cosine.
This is for my trig class. Thanks for the help!
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01/03/14

Rewrite 6(sin5x)cos2x
This is for my trig class. Thanks for the help!
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Expert Answers •2

01/03/14

Rewrite sin(x+pi)+sin(x-pi) as a product.
This is for my trig class. Thanks for the help!
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Expert Answers •2

01/03/14

Find all solutions in the interval [0,2pi): 4sin^2x=1
This is for my trig class. Thanks for the help!
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01/03/14

Find all solutions in the interval [0,2pi): tan^2x + (sqrt3-1)tanx-sqrt3 = 0
This is for my trig class. Thanks for the help!
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01/03/14

Find all solutions in the interval [0,2pi): sin2x=cosx
This is for my trig class. Thanks for the help!
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01/03/14

Use the quadratic formula to find all solutions in the interval [0,2pi): tan^2x-6tanx+4=0
This is for my trig class. Thanks for the help!
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Expert Answers •3

12/31/13

Use the sum or difference formulas to determine: A. sin105 degrees B. tan15 degrees
This is for my trig class. Thanks for the help!
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Expert Answers •2

12/31/13

Rationalize the denominator and simplify: cos^2x / 1 - sinx
This is for my trig class. Thanks for the help!
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Expert Answers •3

12/31/13

Multiply and simplify: (cscx + 1)(cscx - 1)
This is for my trig class. Thanks for the help!
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12/31/13

Factor and simplify: sin^4x + (sin^2x)cos^2x
This is for my trig class. Thanks for the help!
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12/31/13

Simplify sec^2x + csc^2x / csc^2x(1+tan^2x)
This is for my trig class. Thanks for the help!
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12/31/13

Find the value of the other five trigonometric functions, given tanx= 4/11, secx<0.
This is for my trig class, thanks for the help!
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12/12/13

2sec^x-2sec^2x sin^2x
i've done problems like this before, but i was always able to change a term to cancel out something
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Trig Statistics

09/30/13

Thirty-five percent of people who own cell phones use their phones to send and receive text message. Choose 4 cell phones owners at random. What is the probabi
Multipulcation Rules and cconditional probability.   Thirty-five percent of people who own cell phones use their phones to send and receive text message. Choose 4 cell phones owners at random.... more
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Trig

09/09/13

Solve. Write the solution set in interval notation. (Enter EMPTY or Ø for the empty set.) 3x + 7 < 10 or 6x - 14 > 4
use set in interval notation
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05/14/13

prove identity
Secx-tanxsinx=1/secx
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11/15/12

I need help trying to sole tan^2 x =1 where x is more than or equal to 0 but x is less than or equal to pi
this is what it looks like tan^2 x=1 where 0 ≤ x ≤ π
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Expert Answers •5

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