If sinx=-1/2 and x terminates

Prove the following:[1+sinx]/[1+cscx]=tanx/secx =[1+sinx]/[1+1/sinx] =[1+sinx]/[(sinx+1)/sinx] =[1+sinx]*[sinx/(sinx+1)]
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2. asked by Anonymous
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If sinx=-1/2 and x terminates in the third quadrant, find the exact value of tan2x.
1. 2 answers
2. asked by Brenda
3. 844 views
Mathematics - Trigonometric Identities - Reiny, Friday, November 9, 2007 at 10:30pm(sinx - 1 -cos^2x) (sinx + 1 - cos^2x) should
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2. asked by Anonymous
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Given that sinx= 3/5 and that x terminates in Quadrant 2 , determine the values for cosx and tanxFind Cos x/2
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2. asked by Anonymous
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find sin2x, cos2x, and tan2x if sinx= -1/sqrt 5 and x terminates in quadrant II
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2. asked by moch
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If sinx= -1/4 and x terminates in the third quadrant, find the exact value of sin2xMy answer is sqrt-15/8
1. 9 answers
2. asked by Jess
3. 2,591 views
find sin2x, cos2x, and tan2x if sinx= -2/sqrt 5 and x terminates in quadrant III
1. 1 answer
2. asked by Elena
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Simplify sin x cos^2x-sinxHere's my book's explanation which I don't totally follow sin x cos^2x-sinx=sinx(cos^2x-1)
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2. asked by Tara
3. 1,053 views
Hello! Can someone please check and see if I did this right? Thanks! :)Directions: Find the exact solutions of the equation in
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2. asked by Maggie
3. 836 views
I need help solving for all solutions for this problem:cos 2x+ sin x= 0 I substituted cos 2x for cos^2x-sin^2x So it became
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2. asked by Martha
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