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Use a trig identity to

  1. could someone please refresh my memory of the basic trig functions?ex) cos^2 + sin^2 = 1? That is a trig identity.
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    2. raychael asked by raychael
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  2. Use the identity sin^2x+cos^2x=1 and the fact that sin^2x and cos^2x are mirror images in [0,pi/2], evaluate the integral from
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    2. Andre asked by Andre
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  3. Use the identity sin^2x+cos^2x=1 and the fact that sin^2x and cos^2x are mirror images in [0,pi/2], evaluate the integral from
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    2. Rostrastics asked by Rostrastics
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  4. Hello, I need help with solving these trig identities. All help is appreciated!1. Establish the Identity: (cos(2x)/1+sin(2x)) =
    1. answers icon 2 answers
    2. Kam asked by Kam
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  5. Suppose sin(4) -Use the trig identity sin² (A) + cos2 (4) - 1 to find cos(4) in quadrant I. Show all steps and round to
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  6. Prove the trig identitycos(4x)=2-sec^2(2x)/sec^2(2x)
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    2. kristina asked by kristina
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  7. HELP!!!! I don't know how to do the trig identity with this problemcsc^4 x-cot^4x= Csx^2 x + cot^2x
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    2. Quetzally asked by Quetzally
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  8. how do you solve this trig identity? i don't get it at all!cos(a+b)cos(a-b)=cos^2a-cos^2b-1
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    2. sakura asked by sakura
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  9. Trig Identity Prove:cos(x+y)cos(x-y)=cos^2(x)+cos^2(y)-1
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    2. Halle asked by Halle
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  10. Prove This trig identity cos/1-tan +Sin/1-cot = Sin +Cos
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