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solve algebraically, express the roots

solve algebraically, express the roots in exact form2sinxcosx-1=0 I got: 2sinxcosx=1 sin^2x=1 what do I do next? thanks in
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2. asked by sh
3. 491 views
abs x^2/2 -1 =x+3 solve algebraicallyso if I divide through by 2 i get x^2 -2= 2x+3 simplifying x^2-2x-5 =0 solve by quadratic
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2. asked by george
3. 581 views
This series of problems will build your fluency with finding key features of quadratic functions algebraically. For each
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2. 22 views
Solve using the quadratic formula. Express answers as exact roots and as approximate roots, to the nearest hundredth.b) k^2 - 9k
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2. asked by Rebecca
3. 689 views
please help me with thisone thankssolve the inequality algebraically. Express the solution in interval notation. (x-8)^2/x^2-36
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2. asked by dave
3. 693 views
express the roots of unity in standard form a+bi.1.) cube roots of unity 2.) fourth roots of unity 3.) sixth roots of unity 4.)
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2. asked by Yoshi
3. 913 views
express the roots of unity in standard form a+bi.1.) cube roots of unity 2.) fourth roots of unity 3.) sixth roots of unity 4.)
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2. asked by Yoshi
3. 1,776 views
Without solving, apply the Fundamental Theorem of Algebra to determine how many roots y=8x5−2x4+6 will have.(1 point)Responses
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2. asked by yeslian c
3. 25 views
Without solving, apply the Fundamental Theorem of Algebra to determine how many roots y=8x5−2x4+6 will have.(1 point)Responses
1. 1 answer
2. 269 views
Without solving, apply the Fundamental Theorem of Algebra to determine how many roots y=8x5−2x4+6 will have.(1 point)
1. 1 answer
2. 42 views